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 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

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

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