4. Gravetter/Wallnau/Forzano, Essentials - Chapter 6 - End-of-chapter question 4 A psychology class consists of 32 freshmen and 48 sophomores. If the professor selects names from the class list using random sampling. What is the probability that the first student selected will be a freshman

Answers

Answer 1

Answer:

ANS.1

Freshmen F = 32

Sophomore S = 48

Total students = 80 students

P(F) = Favorables cases/Total cases

   = 32/80

Hope this helps!

Answer 2

Answer:

32/80 or 2/5 simplified

Step-by-step explanation:

P(Freshman) = 32/80 or 2/5 simplified


Related Questions


What is the volume of Maria's model in cubic centimeters?
a. 1,200 cu cm
b. 400 cu cm
c. 160 cu cm
d. 600 cu cm

Answers

Answer:

400 cu cm

Step-by-step explanation:

Volume = Length · width · height /3

Volume = 10 · 10 · 12 / 3

Volume = 1,200 / 3

Volume = 400 cu cm

Question 9(Multiple Choice Worth 5 points) (06.01 MCWhat is the value of the expression 2 + 32. (5 - 1) ​

Answers

Answer:

38

Step-by-step explanation:

2 + 3^2 (5 - 1) ​

PEMDAS says parentheses first

2 + 3^2 (4) ​

Then exponents

2 + 9 (4) ​

Then multiply

2+36

Then add

38

Answer:

38

Step-by-step explanation:

Half of Isiah’s money is equal to ⅔ of Bob’s money. Isiah has $15 more than Bob. How much money do they have altogether?

Answers

The amount of money they have altogether is $105.

What is the system of equations that represent the question?

i - b = $15 equation 1

1/2i = 2/3b

3i = 4b

i = 4b/3 equation 2

Where:

i = amount of money Isiah has

b = amount of money Bob has

How much money does Bob have?

Substitute for the value of i in equation 1

4b/3 - b = $15

1/3b = $15

Multiply both sides of the equation by 3

b = $45

How much money does Isiah have?

Substitute for $45 in equation 1

i - $45 = $15

Add $45 to both sides of the equation

i = $45 + $15

i = $60

How much do they both have?

$60 + $45 = $105

To learn more about simultaneous equations, please check: https://brainly.com/question/25875552

Help with the slop thanks

Answers

I think the first one has a slope of one

Below is a regression analysis of the number of burglaries in 2006 (response variable) on the student enrollment (explanatory variable) for 17 randomly-selected four-year public universities in the United States. Assume that the conditions for regression inference have been satistied.
Predictor Coef SE Coef T P
Constant 4.43 10.41 0.43 0.677
Enrollment 0.0018751 0.0005724 3.28 0.005
S= 22.5012 R-Sq= 41.7% R-Sq (adj ) =37.8%
Which of the following is an appropriate interpretation of the number 22.5012?
(a) The standard deviation of the response variable "student enrollment" is 22.5012.
(b) The standard deviation of th explanatory variable "number of burglaries" is 22.5012. )
(c) The typical distance between observed values for student enrollment and values for enrollment predicted by the regression equation is about 22.5012.
(d) The typical distance between observed values for number of burglaries and values for number of burglaries predicted by the regression equation is about 22.5012.
(e) The sum of the squared deviations between the observed number of burglaries and the number of burglaries predicted by the regression equation is about 22.5012

Answers

Answer:

d.  The typical distance between observed values for number of burglaries and values for number of burglaries predicted by the regression equation is about 22.5012.

Step-by-step explanation:

In a regression output, the S which is the standard error of the regression, gives us the absolute measure of the average distance from which the observed data point falls from the line of regression. S is in the unit of the response variable or the dependent  variable. The response variable is the number of burglaries in 2006. Based on this explanation, option d is the best and right answer for this question.

Please help image attached

Answers

Answer:

hope it helps mark as brainliest

If asphalt pavement costs $0.78 per square foot, determine, to
the nearest cent, the cost of paving the shaded circular road
with center o, an outside radius of 50 feet, and an inner
radius of 36 feet.

Answers

Answer:

2590.33

Step-by-step explanation:

...............

stats
i’ll mark brainlist !!

Answers

Answer:

2, 13, 17.5, 35, 59

Step-by-step explanation:

Minimum, quartile Q1, median, quartile Q3, maximum

this table shows somes elements of a function. which ewuation is most likely a rule for the function? pls help i’ll give brainliest

Answers

9514 1404 393

Answer:

  G.  f(x) = x² -3x -1

Step-by-step explanation:

You can try the first line of the table in each of the functions to see which one works.

  F. -(-2) -1 = 1 ≠ 9

  G. (-2)² -3(-2) -1 = 4 +6 -1 = 9 . . . . this one works

  H. (-2)² -2(-2) -1 = 4 +4 -1 = 7 ≠ 9

  J. 2(-2)² -1 = 8 -1 = 7 ≠ 9

georgianne completed 60% of her homework assignment. write the portion of her homework that she still needs to complete as a fraction

HELPP PLEASE

Answers

Answer:

4/10 or 40/100

Step-by-step explanation:

it is 4/10 or 40/100 because 100 - 60 = 40

and 60% as a fraction is 6/10 or 60/100

so it is 40/100 or 4/10

hope this helped :)

Rosie spent $25 on a new DVD. What integer represents Rosie’s situation? A 50, B -25, C 0, D 25

Answers

I think b or d are answer ...

Item 7 Aja's cat weighs 12 pounds. Bo's dog weighs 4 times as much as Aja's cat. How much does Bo's dog weigh?

Answers

The answer ins 46 pounds

Answer:  12x4= 48 so 48

Step-by-step explanation:

You want to buy a new lawn chair from Bed Bath & Beyond that costs $149.99. Luckily you have a coupon for 20% off. Write an expression that could be used to find the sale price of the lawn chair.
No links or I will report!

Answers

Answer:

The sale price of the lawn chair is $119.992

Step-by-step explanation:

149.99 times 0.2=29.998

Subtract

149.99-29.998=119.992

Hope I helped :)

how is the graph of y=4x^(2)+2 different from the graph of y=4x^(2)

Answers

Answer:

y=mx+b

Step-by-step explanation:

so that is b right?

that means its what number you start the y on

Factor completely, then place the answer in the proper location on the grid. 9x4 -225y8

Answers

Answer:

[tex]36(x-25y)[/tex]

Step-by-step explanation:

Bring out the common factor of 4 from the equation

[tex]4(9x-225y)[/tex]

9 and 225 share a common factor of 9. Factor the 9 out

[tex]9 \times 4 (x-25y)[/tex]

[tex]36(x-25y)[/tex]

Which point is located at (0.25,-0.5) point A O point O point R​

Answers

Answer:

• point C

Step-by-step explanation:

______________

The correct answer is the second choice Point C

Use a statistics calculator to find the area, in decimal form, rounded to four places after the decimal, under the (standard) Normal histogram and... (a) ...to the left of 1.8. (b) ...to the right of 2.4. (c) ...between 1.8 and 2.4.

Answers

Answer:

a) 0.9641.

b) 0.0082

c) 0.0277

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

(a) ...to the left of 1.8.

p-value of Z = 1.8, which, looking at the z-table, is of 0.9641.

(b) ...to the right of 2.4.

1 subtracted by the p-value of Z = 2.4.

Looking at the z-table, Z = 2.4 has a p-value of 0.9918.

1 - 0.9918 = 0.0082, which is the answer.

(c) ...between 1.8 and 2.4.

p-value of Z = 2.4 subtracted by the p-value of Z = 1.8.

From itens a and b, we have both. So

0.9918 - 0.9641 = 0.0277

easy math question help solve for x

Answers

Answer:

x=100

Step-by-step explanation:

The exterior angle is equal to the sum of the opposite interior angles

53+ (x-22) = 131

x+31 = 131

Subtract 31 from each side

x +31-31 = 131-31

x = 100

What am I supposed to do

Answers

Answer:

answer is b

Step-by-step explanation:

I'm smart bro

Answer:

b

Step-by-step explanation:

Uhhhh If you need c and d ask me

Answers

Answer:

what are c and d?

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

john earns more than don

Which of the following is a geometric sequence?
A) 5, 7, 9, 11, 13, ...
B) -3,3, -3, 3, -3, 3, ....
C) -2,0, 2, 4, 6, ...
D) 0, -3, -6, -9, -12, -15, ...

help a homie out

Answers

B isn’t. I can’t explain why it is but it is trust me.

what is the value of my in 7=1/4m?​

Answers

It’s 21
No explanation

Step-by-step explanation:

m is

[tex] \frac{1}{28} [/tex]

find the nonpermissible replacement for b in this expression b-7/b-1 ​

Answers

Answer:

1

Step-by-step explanation:

b cannot equal 1 as that would be dividing by zero

20.48=8v
Solve for v

Answers

Answer:

2.56

Step-by-step explanation:

Divide 20.48/8

I hope this helped!

Your answer to this question is, 2.56

Can anybody help me find the answer

Answers

Answer:

8 units²

Step-by-step explanation:

2(2) + 2(2) = 8

A cylindrical fuel tank is 1.25 meters high and has
a radius of 0.60 meter. If the tank can only be
filled to an 85% capacity to allow for expansion
of the fuel, what is the maximum volume of fuel?

Answers

Answer:

The maximum volume of the fuel is:

[tex]V_{fuel}=1.20 \: m^{3}[/tex]

Step-by-step explanation:

The volume of the cylinder is given by:

[tex]V=\pi r^{2}h[/tex]

[tex]V=\pi (0.6^{2})(1.25)[/tex]

[tex]V=1.41 \: m^{3}[/tex]

If the tank can be filled to 85% of its capacity, the maximum volume of the fuel will be:

[tex]V_{fuel}=1.41*(\frac{85}{100})[/tex]

[tex]V_{fuel}=1.20 \: m^{3}[/tex]

I hope it helps you!

write all trigonometric values​

Answers

Answer:

Step-by-step explanation:

[tex]\theta[/tex]             0°       30°        45°         60°          90°

[tex]Sin \theta[/tex]        [tex]0[/tex]         [tex]\frac{1}{2}[/tex]            [tex]\frac{\sqrt{2}}{2}[/tex]          [tex]\frac{\sqrt{3} }{2}[/tex]             [tex]1[/tex]

[tex]Cos \theta[/tex]       [tex]1[/tex]          [tex]\frac{\sqrt{3} }{2}[/tex]          [tex]\frac{\sqrt{2} }{2}[/tex]          [tex]\frac{1}{2}[/tex]              [tex]0[/tex]

[tex]Tan \theta[/tex]      [tex]0[/tex]          [tex]\frac{1}{\sqrt{3} }[/tex]           [tex]1[/tex]           [tex]\sqrt{3}[/tex]           ∞

Answer:

Step-by-step explanation:

sin A=opposite/hypotenuse

cos A=adjacent/hypotenuse

tan A=opposite/adjacent

cosec A=hypotenuse/opposite

sec A=hypotenuse/adjacent

tan A=adjacent/hypotenuse

Hope this helps u!!

The average of any two consecutive even numbers in an even number. Find a counterexample.

Answers

Answer:

2 and 4

Step-by-step explanation:

2+4 = 6

6/2 = 3

average is sum of number divided by how many numbers there are.

A counterexample to the above rule of the average of two consecutive even numbers being even are 8 and 10.

A counterexample is one that disproves a logic.

The consecutive even numbers of 8 and 10 will give an average of:

= Sum of even numbers / 2

= (8 + 10) / 2

= 18 / 2

= 9

9 is not an even number so we can conclude that 8 and 10 are counterexamples to the above rule.

Find out more at https://brainly.com/question/88496.

Is f(x) = 2x²+4 reducible over z ​

Answers

Answer:

what is z ?

Step-by-step explanation:

5(7+3) {Sorry I’m asking so many questions but I’m really struggling with my home work}

Answers

Answer:

50

Step-by-step explanation:

7+3=10. So imma turn ten into t. 5t=5xt. So 5 times 10. 50.

Hope I helped!

[tex] \huge\boxed{\mathfrak{Answer}}[/tex]

[tex]5(7 + 3) \\ = 5 \times 7 + 5\times 3 \\ = 35 + 15 \\ = 50[/tex]

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