According to sales information in the first quarter of 2015, 2.7% of the new vehicles sold in the united states were hybrids. this is down from 3.3% for the same period a year earlier. an analyst's review of the data indicates that the reasons for the sales decline include the low price of gasoline and the higher price of a hybrid compared to similar vehicles. let’s assume these statistics remain the same for 2016. that is, 2.7 percent of the new car sales are hybrids in the first quarter of 2016. for a sample of 40 vehicles sold in the richmond, virginia, area:

a. how many vehicles would you expect to be hybrid? (round your answer to 2 decimal places.)

You should expect 1.08 vehicles to be hybrid.

Step-by-step explanation:

For each vehicle, there are only two possible outcomes. Either it is a hybrid, or it is not. The probability of a vehicle being a hybrid is independent of other vehicles. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

The expected value of the binomial distribution is:

2.7 percent of the new car sales are hybrids in the first quarter of 2016.

This means that

For a sample of 40 vehicles sold in the Richmond, Virginia

This means that

For a sample of 40 vehicles sold in the Richmond, Virginia

You should expect 1.08 vehicles to be hybrid.

what is the original number? you forgot to add it.

total amount of money that he should pay if he has not used his duty free exemption is $98

step-by-step explanation:

given a united states citizen returning to the states declares the following items at the customs office: 3 shirts at $8.50 each 2 dresses at $27.50 each 1 pair of gold cuff links at $17.50 per pair. we have to find how much he pay

cost of 3 shirts if one cost at $8.50 is

cost of 2 dresses if one cost at $27.50 is  

cost of 1 pair of gold cuff at $17.50

so, total amount of money that he should pay if he has not used his duty free exemption is   $25.5+$55+$17.50=$98