MATH 1280 FINAL EXAM ACTUAL EXAM QUESTIONS AND CORRECT ANSWERS | UNIVERSITY OF THE PEOPLE (ALREADY GRADED A+) | LATEST UPDATE 2025

MATH 1280 FINAL EXAM ACTUAL
EXAM QUESTIONS AND CORRECT
ANSWERS | UNIVERSITY OF THE
PEOPLE (ALREADY GRADED A+) |
LATEST UPDATE 2025




You are interested in the number of English-speaking people on the
planet who want to play a new kind of online video game. You asked
300 college students if they were interested in playing video games,
100 said yes, and of them 20 preferred your game to an existing game
that is widely used. How many people were in the sample?

Select one:

a. The number of English-speaking people on the planet who want to
play a new kind of online video game.

b. 300

c. 200

d. 100 e. 20 - CORRECT-ANSWER-b




What is the mean of x? x <- c(12, 14, 11, 14, 13, 15, 12, 16, 10)

, Select one:

a. 12

b. 13

c. 14

d. 15 e. 16 - CORRECT-ANSWER-b




Using the value of x from the prior question, what is the standard
deviation of x?

Select one:

a. 1

b. 3.75

c. 9

d. sqrt(13) e. 1.94 - CORRECT-ANSWER-e




There was a very short quiz with five questions. The following table
shows the number of correct answers and the cumulative relative
frequency for those scores in the class. value: 2 3 4 5 cumulative
relative frequency: .13 .55 .925 1 What is the probability that a
randomly selected student from the class scored a 3 on the short quiz?