219. Approximate the following binomial probabilities by the use of normal approximation. Eight percent of customers
of a bank keep a minimum balance of $500 in their checking accounts. What is the probability that in a random
sample of 100 customers
a. exactly 6 keep the minimum balance of $500?
b. exactly 11 keep the minimum balance of $500?
c. 6 or fewer keep the minimum balance of $500?

d 25 pi/6

step-by-step explanation:

the diameter is 10 inches

the radius is 1/2 of the diameter or 5 inches

the area of the circle is

a = pi r^2

  = pi 5^2

  = 25 pi

the slice is 60 degrees of the entire circle.

60 degrees out of 360   60/360 = 1/6

the area of the slice is 1/6 of the circle

a slice = 1/6 a circle

a slice = 1/6 * 25 pi

3

step-by-step explanation:

57.09 minus 7.0435 equals

step-by-step explanation:

just subtrach them both and u get the answer of 50.0465