In a certain population of the eastern thwump bird, the wingspan of the individual birds follows an approximate normal distribution with mean 53.0mm and a standard deviation 6.25mm. a sample of five birds is drawn from the population.
(a) find the probability that the wingspan of the first bird chosen is between 48mm and 58mm long?
(b) find the probability that at least one of the five birds has a wingspan between 48mm and 58mm long?
(c) what is the expected number of birds in this sample whose wingspan is between 48mm and 58mm long?

Jonathan pays $1.90 per pound for potatoes. he buys 8.3 pounds of potatoes. he determines that he will pay $15.77, before tax, for the potatoes. which best describes the reasonableness of jonathan’s solution? jonathan’s answer is reasonable because there are two decimal places in the factors and two in the product. jonathan’s answer is unreasonable because there are three decimal places in the factors and two in the product. jonathan’s answer is reasonable because is 16, and 16 is close to 15.77. jonathan’s answer is unreasonable because is 8, and 8 is not very close to 15.77.

Enter the missing numbers in the boxes to complete the table of equivalent ratios.time (min) distance (km)? 36 9? 1512 ?

Polynomial that can be factored as (3x-4)(3x+4)