What is the expected number

Reference no: EM13986111

Submit your answers to the following binomial questions. You may use the appendix tables 5 to answer parts a and b. According to a government study,15% of all children live in a household that has an income below the poverty level. If a random sample of 15 children is selected:

a) What is the probability that 4 or more live in poverty?

b) What is the probability that 3 live in poverty?

c) What is the expected number (mean) that live in poverty

Reference no: EM13986111

Questions Cloud

Discuss the differences in the benefits to farmers : Which policy is least efficient? Discuss the differences in the benefits to farmers and the cost to the government.

Standard normal curve : The area under the standard normal curve that lies to the left of -1.39 is 0.0823. Without consulting a the table giving areas under the standard normal curve, determine the area under the standard normal curve that lies to the right of 1.39.

Interval of the true variance and standard deviation : A random sample of 15 snow mobiles was selected, and the lifetime (in months) of the batteries was measured. The variance of the sample was 8.6. Find the 90% confidence interval of the true variance and standard deviation.

What is the acceleration of the ball while on the incline : Wwhat is the acceleration of the ball while on the incline? What distance doed the ball travel along the incline while it's accelerating? How fast is the ball going at the bottom of the incline?

What is the expected number : What is the probability that 4 or more live in poverty? What is the probability that 3 live in poverty? What is the expected number (mean) that live in poverty

What is the supply function if the firm has avoidable : What is the supply function if the firm has avoidable fixed costs of $1562.50? What is the firm's supply function if there is no avoidable fixed cost?

What is the probability that she makes errors : Use the normal approximation to the binomial distribution - Assuming this rate continues into this year and she prepares 60 returns, what is the probability that she makes errors

What is the velocity of the crate at the bottom of the ramp : A 15kg crate, initially at rest, slides down a ramp 2m long and inclined at an angle of 20 degrees with the horizontal. If there is no friction between the ramp surface and crate, what is the velocity of the crate at the bottom of the ramp?

What is kinetic energy of ball when it reaches final positon : The ball starts from rest at an initial position xi and moves under the influence of the force to a final position xf. What is the kinetic energy of the ball when it reaches final positon xf.

User Account

All Pages