The mean length of a pine needle is 3.2 inches with standard deviation of .148 inches. What's the probability that a random sample of 44 needles has a mean over 3.5 inches

Answers

Answer 1

Answer:

0.02133

Step-by-step explanation:

We solve using the z score formula

z = (x-μ)/σ

where

x is the raw score = 3.5

μ is the population mean = 3.2

σ is the population standard deviation =0.148 inches

For x > 3.5

z = 3.5 - 3.2/0.148

z = 2.02703

Probability value from Z-Table:

P(x<3.5) = 0.97867

P(x>3.5) = 1 - P(x<3.5)

P(x>3.5) = 1 - 0.97867

P(x>3.5)= 0.02133

The probability that a random sample of 44 needles has a mean over 3.5 inches is 0.02133


Related Questions

Can you guys solve this for me please

Answers

Answer:

50°

Step-by-step explanation:

all triangles = 180°

add 53 + 77 = 130

subtract 180 - 130 = 50

giving you your answer of 50°

Answer:

50

Step-by-step explanation:

The total angle of a triangle is 180

so add 77 and 53 to find out what you have so far

77 + 53 = 130

then you need to find the difference which you do by subtracting

180 - 130 = 50

so x = 50

PLEASE ANSWER ASAPP!!

Answers

Answer:

B

Step-by-step explanation:

3a + 11 > 5

3a > -6

a > -2

The second one because the answer is -2

Please Help Me it's due soon

Answers

-1 and 4 I think is the answer is the function

how do I find the area

Answers

split the figure into a rectangle and trapezoid, the rectangles area is 9 * 6 or 54 and the area of the trapezoid is (11 + 6) divided by 2 so 8.5 * 9 or 76.5

76.5 + 54 = 130.5

Answer:

105cm2

Step-by-step explanation:

area= area f rectangle + area of trapezium

        = (6x9)+( [tex]\frac{6+11}{2}[/tex]x6)

         = 54+51

        = 105 cm2

Help ASAP please !!!!!

Answers

Answer:

Here am i

Step-by-step explanation:

I can help u with any question

Austin has $75 to spend on sporting goods. He wants to buy a soccer ball for $12 and spend the rest of the
money on soccer shorts. Each pair of soccer shorts costs $19. Which inequality can be used to find s, the
number of pairs of soccer shorts he can buy?
a. 12 + 195 $ 75
c. 19 + 12s < 75
b. 12 +195 2 75
d. 19 + 12s 275

Answers

Answer:

s = 3 He can only but up to 3 pairs of shorts, with 3 dollars left over.

Answer is 12 + 3s <= 75

Step-by-step explanation:

$75 - $12 = $63

$63 / $19 = $3.3157894 about 3

$3 * $19 = $57

$57 + $12 = $69

$72 - $69 = $3

Sam jogs every 2 days. He does Pilates every 3 days. Suppose Sam jogs and does Pilates on October 1. What are the next three dates on which he will jog and do Pilates?

Answers

Answer:

October 7, October 13, 0ctober 19

Step-by-step explanation:

Jog = every 2 days

Next days from October 1 = October 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31

Pilates = every 3 days

Next days from October 1 = October 4, 7, 10, 13, 16, 19, 22, 25, 28, 31

What are the next three dates on which he will jog and do Pilates?

= October 7, October 13, 0ctober 19

The next three dates on which he will jog and do Pilates are October 7, October 13, 0ctober 19

Line q goes through points (-3, 3) and (-5, -3)at what point does line q cross the y-axis?

Answers

Answer: At point (0,12)  line q cross the y-axis.

Step-by-step explanation:

Equation of a line passing through (a,b) and (c,d) :

[tex](y-b)=\dfrac{d-b}{c-a}(x-a)[/tex]

Given: Line q goes through points (-3, 3) and (-5, -3).

Equation of line q:

[tex](y-3)=\dfrac{-3-3}{-5(-(-3)}(x-(-3))\\\\\Rightarrow\ (y-3)=\dfrac{-6}{-5+3}(x+3)\\\\\Rightarrow\ (y-3)=\dfrac{-6}{-2}(x+3)\\\\\Rightarrow\ y-3=3(x+3)[/tex]

When line crosses y-axis , x=0 .

So,

[tex]y-3=3(3)\\\\\Rightarrow\ y-3=9\\\\\Rightarrow\ y=9+3\\\\\Rightarrow\ y=12[/tex]

Hence, At point (0,12)  line q cross the y-axis.

.
g. When f(x) = 0, what is the value of x.

Answers

Answer: x=0

Step-by-step explanation:

question is in picture ​

Answers

Answer:

6

Step-by-step explanation:

the first thing I did to smome but you know 5AM was a l

can u guys please help me!!

Answers

Answer and Step-by-step explanation:

This problem requires the use of trigonometric functions, specifically the tangent trig function.

[tex]tan(Angle)=\frac{opposite}{adjacent}[/tex]

Plug in the values.

[tex]tan(40) = \frac{8000}{x}[/tex]

Multiply by x to both sides, then divide by tan(40) to both sides.

[tex]x = \frac{8000}{tan(40)}[/tex]

Now, plug this into a calculator and rounded to the nearest whole number (foot).

x = 9534.0287

x = 9534 ft.

The answer is 9534 ft., the last option.

#teamtrees #WAP (Water And Plant)

What is the Slope of the line given the Linear Equation y=3x -1

Answers

Answer:

The slope is 3.

Step-by-step explanation:

In the line y=3x-1, the slope would be 3.

slope=3
The slope intercept form is y=mx+b. Remember m is the slope, so therefore 3 is the slope of this equation. Hope it helped :)

3. Antony and Cleopatra are 100 miles apart . To meet at a planned location , Antony travels at 12 mph and Cleopatra travels at 8 mph. How far must Antony travel if they leave at the same time?

Answers

Answer:

60 miles

Step-by-step explanation:

Distance apart = 100

Rate of travel. :

Anthony = 12 mph

Cleopafda = 8 mph

Using the relation :

Speed = distance / time

Distance = speed * time

If they leave at the same time, travel time Can be represented as x

Anthony's distance + Cleopafda distance = total distance

12x +. 8x = 100

20x = 100

x = 5

Hence, they both traveled for 5 hours before meeting.

Distance covered by Anthony :

Speed * time

12 mph * 5h = 60 miles

Anthony must travel. For 60 miles.

what slope contains points -1,-3 and 3,5

Answers

Answer:

A slope of 2

Step-by-step explanation:

(-1,-3) (3,5)

x1  y1  x2 y2

y2-y1/x2-x1= slope

5-(-3)/3-(-1)=

5+3/3+1= 8/4= 2

If the principle is $4,000 and the rate of interest is 8% (simple interest), what is the amount of interest after one year?

Answers

Answer: $320

Step-by-step explanation:

A principal of $4,000 was invested.

The principal increases at a rate of 8% every year by simple interest.

After 1 year the total in the account can be calculated by the formula:

= Principal * ( 1 + rate * time)

= 4,000 * ( 1 + 8% * 1)

= $4,320

Interest:

= Amount after a year - original price

= 4,320 - 4,000

= $320

Which ordered pair would form a proportional relationship with the point graphed below?


On a coordinate plane, a line goes through points (0, 0), (10, 40) and (negative 10, negative 40).

Answers

Answer:

the answer is c

Step-by-step explanation:

HOPE THIS HELPS

Answer:

The answer is c

Step-by-step explanation:

I did the test on edge

A person traveling 60 feet per second is traveling how fast, in miles per hour?​

Answers

Answer:21,600 feet per hour

Step-by-step explanation:

60*60=360 (multiplying the distance traveled per second by the number of seconds in a minute to get how far the person traveled in a minute)

360*60=21,600 (multiplying the distance travels in a minute by the number of minutes in an hour to find the total distance traveled in an hour)

How would I solve the equivalent fraction to 2/6.?

Answers

Answer: See explanation

Step-by-step explanation:

To solve the equivalent fraction to 2/6, you divide or multiply the numerator and the denominator by thesame set for numbers. For example

2/6 = (2 × 3) / (6 × 3) = 6/18

2/6 = (2 ÷ 2) / (6 ÷ 2) = 1/3

The above fractions are both equivalent fractions of 2/6

2. What is the equation for this line in "Slope Intercept Form" *

Answers

The answer is y=2x-2

A new hotel in town purchased 10 new flat screen televisions for $10,575.50 for their suites. How much did each television cost?

Answers

Answer:

1057.55

Step-by-step explanation:

10,575.50 / 10 = 1057.55

Find a​ point-slope form for the line with slope 1/5 ( 1 over 5) and passing through the point ​(−8​,−9​)

Answers

Answer:

y + 9 = 1/5(x + 8)

Step-by-step explanation:

Point-slope form: y - y₁ = m(x - x₁)

Substitute the values into the equation.

y - (-9) = 1/5(x - (-8)

y + 9 = 1/5(x + 8)

hi cn i pleas have help on this question

Answers

Answer:

396 cm squared

Step-by-step explanation:

10*27=270 cm squared

9*14=126 cm squared

Answer

i think its 486cm squared

Step-by-step explanation:

9*24=216cm

10*27=270cm

216cm+270cm=486cm squared

but im exactly sure

On a 3-week vacation to Paris, Martha's expenses for food, gifts, and accommodations was 80$ less than 3 times her airfare. If the total expenses for the trip was 2, 660, how much was her airfare

Answers

Martha’s airfare is$2410


3. Find2/7-3/7 - 5/14

Answers

Answer:

-1/2 ignore this widjsnwnsisiahwndmd

Pls pls pls help me I didn’t understand

Answers

Answer:

Use your notes or watch

videos about it

Step-by-step explanation:

Please help! (Extra points but please be correct)

Answers

Answer: This is a nonfunction because there are two different x values for the y value of 20 . In order for it to be functional every x value has to have a different y value.

Step-by-step explanation:


Me ayudan explicándome esto o igual nose algunas respuestas

Answers

Answer:

Step-by-step explanation:Subscribe to my channel thatgirl.christinak for a giveaway

Giving brainliest!!!!!!!!

Answers

Answer:

I'm not sure but I think it is A.

The number of Ava's coins is x. The number of Ava's coins is more than 15. so x is more than 15.

x > 15

Answer:

A

Step-by-step explanation:

Since Ava has more than X coins in her collection then 15 is the amount she used to have so

x> 15

y=
y=
\,\,-4x
−4x
y=
y=
\,\,3x+28
3x+28

Answers

answer:

don't know, don't worry

mark me as brainlist

Which term best describes the graph of y = x - 1

A. Increasing
B. Decreasing
C. Constant
D. Positive

Answers

A (it’s a slight increase)
if you have a TI-84 calculator you could solve this problem in seconds.
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