An appliance dealer sells three different models of upright freezers having 14.5, 16.9, and 19.1 cubic feet of storage space. let x = the amount of storage space purchased by the next customer to buy a freezer. suppose that x has the following probability distribution. x p(x)14.5 .216.9 .519.1 .3(a) calculate the mean and standard deviation of x.(b) if the price of the freezer depends on the size of the storage space, x, such that price = 25x - 8.5, what is the mean value of the variable price paid by the next customer? (c) what is the standard deviation of the price paid?

17.08, 1.604

Step-by-step explanation:

given that an appliance dealer sells three different models of upright freezers

as per data given below:

x                  14.516.9          19.1     Total

p                   0.20.5          0.3     1

x*p                       2.98.45         5.73    17.08

x^*p                 42.05142.805109.443294.298

Thus we find mean of X = 17.08

Var(x) =

Std dev (x) =

b) Price = 25x-8.5

E(price) =

c) Var (price) =

well there are two answers for that.

1: you need 120 ones then that will equal up to 120.

2: you could also do one 100 and 2 tens.

those are the answers that i have thought of.

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

happy to

pls mark as brainliest