Jaimie is practicing for the long jump. Each week she makes 10 jumps and after each jump she records the distance, in meters, she reaches with each jump. Her results for this week are represented in the table below. Jump 1 2 3 4 5 6 7 8 9 10 Distance (m) 5.1 5.3 5.4 5.2 5.5 5.4 5.2 5.3 5.5 3.5 Jaimie then reviews her results and determines the mean and standard deviation so that she can compare her results from this week to her results from the previous week. Jaimie felt the 10th jump was not reflective of her ability because she stumbled before making the jump and decided to remove the 10th jump from her data set. Determine whether each statement describes the change that will occur to the mean and standard deviation from this week's results when Jaimie removes the 10th jump from her data set. Select Yes or No for each statement. Yes No Removing the 10th jump from her data set will cause her average jump distance to increase. Removing the 10th jump from her data set will cause her average jump distance to decrease. The standard deviation will increase because the jump distances will be more spread out. The standard deviation will decrease because the jump distances will be more clustered together.

Answers

Answer 1

Answer:

mean=(5.1 +5.3+ 5.4 +5.2+ 5.5 +5.4+ 5.2 +5.3 +5.5+ 3.5)/10=51.4/10=5.14


Related Questions

A smartphone has a screen that has a width of x and a height that is 1.8 times the width. The outer dimensions of the phone are shown.





Write an expression for the portion of the phone that is not occupied by the screen. Assume that the phone is rectangular.

Answers

Answer: 4.8x+3

Step-by-step explanation:

The portion of the phone that is not occupied by the screen is 4.9x + 3 cm².

What is Surface Area?

For each three-dimensional geometrical shape, surface area and volume are determined. The area or region that an object's surface occupies is known as its surface area. Volume, on the other hand, refers to how much room an object has. There are numerous shapes and dimensions in geometry, including sphere, cube, cuboid, cone, cylinder, etc. Each form has its own volume and surface area. Nevertheless, we can only estimate the area that two-dimensional figures like a square, circle, rectangle, triangle, etc. cover; there is no volume available.

As per the given data:

The width of the screen = x cm

Height of the screen = 1.9 times the width = 1.9x

Dimensions of the phone are given in the diagram.

The area of the screen = height × width

= 1.9x × x = 1.9x² cm²

The area of the phone = (1.9x + 3)(x + 1)

= 1.9x² + 1.9x + 3x + 3

= 1.9x² + 4.9x + 3 cm²

Area of the phone not occupied by screen:

= area of the phone - area of the screen

= 1.9x² + 4.9x + 3 - 1.9x²

= 4.9x + 3 cm²

Hence, the portion of the phone that is not occupied by the screen is 4.9x + 3 cm².

To learn more about surface area, click:

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(The given question is incomplete, the complete question is given below)

actually thats wrong bc my teacher did it with us but i really dont know the answer

Answers

Answer:

???

Step-by-step explanation:

darn
do u have the question lololol

Please help me. .....

Answers

Answer:

24 pounds

Step-by-step explanation:

Step 1: Find out how many pens he bought

12 pens per pack

Charles bought 60 packs

60 packs x 12 pens = 720 pens

Step 2: Find out how much Charles spent

2.80 per pack

Charles bought 60 packs

60 x 2.80 = 168 pounds

Step 3: Find out how many pens Charles sold

Charles sold 2/3 of his pens

2/3 x 720 = 480

Step 4: Find out how manypens he sold

Charles sold the pens for 40p

40p x 480 = 19200p

Step 5: Convert pences to pounds

19200p = 192 pounds

Step 6: Find the profit

192 - 168 = 24 pounds

Step 7: Therefore statement

Therefore he mad 24 pounds of profit

For each expression, use the Distributive Property to write an equivalent expression.

Answers

Answer:

a) 4(r+2) = (r+2)4

b) (6-8)•r = r•(6-8)

c) 8r+12 = 12+8r

d) 6x-9y = 9y-6x

e) 6x-4y-2z = 2z-4y-6x

Step-by-step explanation:

It's the same equation but its backwards

Hope this helps

Could someone help me figure this out.?

Answers

[tex]5.50p + 3.25[/tex]

[tex]41.75 = 5.50p + 3.25[/tex]

[tex]41.75 - 3.25 = 5.50p + 3.25 - 3.25[/tex]

[tex]38.5 = 5.50p[/tex]

[tex] \frac{38.5}{5.50} = \frac{5.50p}{5.50} [/tex]

[tex]7 = p[/tex]

Allison ordered 7 pictures.

Can someone help me with this thingy thing thing

Answers

Answer:

A or D your choice

Step-by-step explanation:

what was the original weight of the ball ?

Answers

Answer:

16.5

Step-by-step explanation:

A is the correct answer

Step-by-step explanation:

If you plug y=x+10 in for the Y variable you just have to solve by multiplying.

1.) It should look like this:

2x + 3(x +10) = 40

2.) You will distribute the three which will make the equation look like this:

2x + 3x + 30 = 40

3.) Add like terms. Then subtract 30 from both sides. Then divide 5 by both sides to get the variable x alone.

but 16.5 is the answer

Four friends are having lunch at Dan’s Diner. Cindy’s parents are treating for the lunch. They each ordered Dan’s lunch special and shared a $5 pitcher of lemonade. The total cost of the bill was at least $40. Cindy said the inequality 4l + 5 < 40 can be used to find the cost of each lunch special. Describe Cindy’s error and give the correct inequality.

Answers

Answer:

39.50

Step-by-step explanation:

Jonathan is putting a border around a right triangle and needs to figure out the triangle's height. If the triangle has a base length of 4 cm and a total area of 24 cm², what is the height?

Answers

Step-by-step explanation:

formula to find area of a triangle:

A=1/2 × base × height(h)

insert the values into the formula:

24=1/2 × 4 × h

solve for h :

24=2h

24/2=h

h = 12 cm ( Ans )

The height of triangle will be 12 cm.

What is mean by Triangle?

A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.

Given that;

The triangle has a base length of 4 cm.

And, A total area of 24 cm².

Now,

We know that;

Area of right triangle = 1/2 × Base × Height

⇒ 24 = 1/2 × 4 × h

⇒ 24 = 2 × h

⇒ h = 24 / 2

⇒ h = 12 cm

Thus, The height of triangle = 12 cm.

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please help! math! 10 points was the max:(
will give brainliest!!

Answers

It's gonna be an irrational number because the length of the hypotenuse is 6.40312....... cm

[tex] {4}^{2} + {5}^{2} = {41}^{2} [/tex]

[tex] \sqrt{41} = 6.403124237[/tex]

An irrational number cannot be written as a simple fraction and the decimals would keep on going without a pattern (if it was repeating, it would be rational).

Answer:

If the legs are equal to 4 cm and 5 cm, respectively we can rewrite the equation 42+52=c2 -> 16+25=41=c^2 so then, c= the square root of 41, which is an irrational number.

Hope this helps!

Wind farms are a source of renewable energy found around the world. The power P (in kilowatts) generated by a wind turbine varies directly as the cube of the wind speed v (in meters per second). If a turbine generates 700 kW in a 12 m/s wind, how much power does it generate in a 6 m/s wind?

(The formula for P as a power function of v is P = a ⋅ v3.


A. 88 kW

B. 175 kW

C. 125 kW

D. 1050 kW

Answers

Answer:

New power = 88 Kw (Approx.)

Step-by-step explanation:

Given:

P = a(v³)

Old power p = 700 Kw

Old wind speed v = 12 m/s

Find:

New power when v = 6m/s

Computation:

P = a(v³)

700 = a(12³)

a = 0.4050 m²

New power = a(v³)

New power = (0.4050)(6³)

New power = 87.48

New power = 88 Kw (Approx.)

Workers in an office of 60 staff were asked their favourite type of take-away.
The results are summarised in the table.

Take-away Frequency Angle
Pizza 14
a
Curry 6
b
Fish & chips 4
c
Kebab 14
d
Other 22
e
Work out the size of each angle to draw a pie chart.
a
=

b
=

c
=

d
=

e
=

Answers

Answer:

a = 84°

b = 36°

c = 24°

d = 84°

e = 132°

Step-by-step explanation:

The parameters of the workers in the office are;

The number of staffs in the office = 60 staffs

The take-aways are pizza, curry, fish & chips, kebab and other

The frequency for the above take-aways = 14, 6, 4, 14, and 22 respectively

The variables for the angles representing the above take-aways on the pie chart = 'a', 'b', 'c', 'd', and 'e'; respectively

In order to find the size of the angles that represent each group of workers in the pie chart, we find the ratio of the group size to the total number of workers and we multiply the result by 360° as follows;

∠a = 360° × 14/60 = 84°

∠b = 360° × 6/60 = 36°

∠c = 360° × 4/60 = 24°

∠d = 360° × 14/60 = 84°

∠e = 360° × 22/60 = 132°

Find the values of x and y. Write your answer in simplest form.
5
Х
150°
The value of x is
The value of y is

Answers

Value of x is 5 radical 3
Value of y is 10

The cube root parent function is reflected across the x-axis,vertically stretched by a factor of 3

Answers

6



Bach gc for Judaism Judaism

The daily simple interest rate for a credit card is 0.059%. What is the simple interest for 30
days on £4 750? Help please

Answers

Answer:

£84.075

Step-by-step explanation:

4750 x 0.059% = 2.8025

2.8025 x 30 = £84.075

Answer:

Como así?

Step-by-step explanation:

Write an equation in point-slope form of the line that passes through the points (2,4) and has the slope of 7

Answers

Answer:

y-4=7(x-2)

Step-by-step explanation:

y-y1=m(x-x1)

y-4=7(x-2)

The maximum distance (in nautical miles) that a radio transmitter signal can be sent is represented by the expression 1.23h√

, where h

is the height (in feet) above the transmitter.


Estimate the maximum distance x

(in nautical miles) between the plane that is receiving the signal and the transmitter. Round your answer to the nearest tenth.

Answers

Answer:

182.4

this website deleted my paragraph... TLDR; 182.4 is the answer

4(a + b) when a = 2 and b = 4

Answers

Answer: 24

Step-by-step explanation:

a = 2, b = 4

4(a + b)

=> 4 (2 + 4)

=> 8 + 16

=> 24

Answer:

24

Step-by-step explanation:

Use distributive property:

4(a + b) = 4a + 4b

Then substitute the values in for the variables:

4(2) + 4(4) = 8 + 16 = 24

When taking notes from a book, story, or other selection the source should be?
A. simple
B. dependable
C. easy to copy

Answers

Answer:

b

Step-by-step explanation:

Answer:

B. dependable

Step-by-step explanation:

well good luck

A man wants to determine the height of a light house. He measured
the angle at A and found that tan A = 3/4. What is the height of the
light house if A is 40 m from the base ?

Answers

Answer:

Step-by-step explanation:

height/A = tanA

height/40 = 3/4

height = 30 meters

Solve using substitution.
y = -9x - 10
y = -2x + 4

Answers

Answer:

1.444444444444444444? I tried

Answer:

X= -2

Y= 8

im not sure if thats the way u needed

Which algebraic expression represents “the difference of 54 and a number”? HELP I AM TIMED ASAP

Answers

Answer:

The first one

Step-by-step explanation:

When graphing inequalities, where can the solutions be found?
a.
there are no solutions to inequalities
c.
where the shading overlaps
b.
outside the shaded portion
d.
below the shaded portion

Answers

the answer is c cuz the shaded overlapping section represents the answer

Answer:

Its c

Step-by-step explanation:

which system of equations graphed below has a solution of (2,1)​

Answers

Answer:

Sorry to say this... but neither of them have a solution of (2,1)

Step-by-step explanation:

The top one has a solution of (-2,-1). The one on the bottom has a solution of (-2,1). So... I'm not sure how this can help... but yeah...

althea normally saves $x each month; but in june she saved $4 more than twice her usual amount. in june she saved...

Answers

Answer:

The amount saved in June is;

$(2x + 4)

Step-by-step explanation:

Here, we want to get the amount saved in June

From the question, she saved $5 more than twice here usual amount

twice here usual amount is 2 * x = $2x

So, adding the extra $4; the amount saved will be;

2x + 4

Find the geometric mean between 4 and 6. (Always simplify the radical completely.)

Answers

Answer:

Use the formula to find the geometric mean.

4

6

Multiply

4

by

6

.

24

Rewrite

24

as

2

2

6

.

Tap for more steps...

2

2

6

Pull terms out from under the radical.

2

6

Approximate the result.

4.89897948

The geometric mean should be rounded to one more decimal place than the original data. If the original data were mixed, round to one decimal place more than the least precise.

4.9

$9.27 for 48 oz of taco meat

Answers

Answer:

Need more info to answer your question!

Step-by-step explanation:

Factor the following using identities wherever necessary
1) x² + 8x
2) x2 - 4x
3) x² + x - 2
4) x2 - 9
5) x² + 22x + 121
6) x² - 8x + 16​

Answers

Answer:

1. x(x+8)

2. x(x−4)

3. (x−1)(x+2)

4.(x+3)(x−3)

5. (x+11)(x+11)

6. (x−4)(x−4)

Step-by-step explanation:


[tex] \sqrt{8} [/tex]

Answers

[tex] \sqrt{8} =2 \sqrt{2} [/tex]

Explanation :

[tex] \sqrt{8} [/tex]

[tex] = \sqrt{(4 \times 2)} [/tex]

[tex] = \sqrt{4} \times \sqrt{2} [/tex]

[tex] = 2 \sqrt{2} [/tex]

Please Help ASAP I’m confused

Answers

c maybe i'm not sure
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