The number of people entering a state park is a random variable X with a mean of 3 and a variance of 2. The admission to the park is $6 per car plus an additional $1.50 per person in the car. What is the mean of the total amount of money collected for a car entering the park

$10.50

Step-by-step explanation:

Given the following :

Number of people entering the park = X

Mean number of people = 3

Fixed admission fee = $6

Additional fee per passenger = $1.50

Therefore, mean total paid by a car entering the park :

MEAN Total = Admission fee + (additional fee * mean number of people entering the park)

mean Total = $6 + ($1.50 * 3)

Mean total = $6 + $4.50 = $10.50

x= 3^y

step-by-step explanation:

3,6 and 7.

step-by-step explanation:

a) unit place of 37 is 7

so the unit place of cube of 37 will be

7³= 343=3

the answer is 3.

b) unit place of 56 is 6, so the unit place of cube of 56 will be

6³= 216=6

the answer is 6.

c) unit place of 133 is 3, so the unit place of cube of 133 will be

3³= 27= 7.

the answer is 7.