(Solution) If A Student Scored 86 Points On A Test Where The Mean Score Was 79.2 And The Standard Deviation Was 4. The Student's Z Score Is _______.Question 9... | Snapessays.com


(Solution) If a student scored 86 points on a test where the mean score was 79.2 and the standard deviation was 4. The student's z score is _______.Question 9...


If a student scored 86 points on a test where the mean score was 79.2 and the standard deviation was 4.7. The student's z score is _______.Question 9 options:

 

A) 16.85

 

B) 18.30

 

C) 0.31

 

D) 1.45

 

How many ways can a student select five questions from an exam containing 12 questions, if one of the five must be the last question? Question 13 options:

 

A) 330

 

B) 7920

 

C) 40,320

 

D) 95,040

 

A gumball machine contains 300 grape flavored balls, 400 cherry flavored balls, and 500 lemon flavored balls. What is the probability of getting 1 grape ball, 1 cherry ball, and 1 lemon ball if each ball was removed and then replaced before choosing the next from the machine?

 

Question 14 options:

 

A) 0.0264

 

B) 0.0531

 

C) 0.0347

 

D) 0.0482

 

Find the mean of the distribution shown.

 

X 4 6

 

P(X) 0.36 0.64

 

Question 15 options:

 

A) 1.64

 

B) 4.00

 

C) 5.28

 

D) 6.00

 

A coin is tossed 72 times. Find the standard deviation for the number of heads that will be tossed. Question 16 options:

 

A) 36

 

B) 18

 

C) 4.24

 

D) 6.78

 

In a large bag of marbles, 20% of them are red. A child chooses 4 marbles from this bag. If the child chooses the marbles at random, what is the chance that the child gets exactly three red marbles?Question 17 options:

 

A) 0.026

 

B) 0.102

 

C) 0.154

 

D) 0.032

 

Find the probability P(z

 


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This question was answered on: May 23, 2022

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