b) Suppose you select 4 chocolate bars at What is the probability that the mean weight of 4 randomly selected chocolate bars is less than 7.85 ounces. Be sure to:

Q: Determine the probability that in a sample of 100 the sample proportion is less than .75 if p = 0.80

A: Given, Sample size, n = 100 Population proportion, p =0.8 Z = p^-pp1-pn

Q: Find the probability that child spends less than 1.4 per day unsupervised c. What percentage of the…

A: Given X=the amount of time the child spends alone per day Given that X follows a normal distribution…

Q: b. What is the probability that the sample mean is less than-12? (Round final answer to 4 decimal…

A:

Q: C. The probability that the the child will be older than 5 years old? | 0.8681 d. The probability…

A: Consider that the answer of the given part a, b, and c are the correct answer. And distribution is…

Q: The number of calls received by an office on Monday morning between 8:00 AM and 9:00 AM has a mean…

A: Answer: From the given data, Let X represent the number of calls received by an office on morning…

Q: A public park in Brooklyn occupies a rectangular plot of land measuring 239 m by 127 m. The park has…

A: what is the probabilty that it will land in the swimming pool

Q: The amount of time that people spend at Grover Hot Springs is normally distributed with a mean of 79…

A: (a)   Determine the distribution of X.   The distribution of X is determined below as follows:

Q: According to a Gallup Poll, the probablity that a Republican approves of the death penalty is 69%.…

A: The probability that Republicans approve of the death penalty is 69%.p=0.69wants to calculate…

Q: 1. The average number of liters of fresh milk that a person consumes in a month is 18 iters. Assume…

A: Solution: Let x be the fresh milk that a person consumes in a month is normally distributed with…

Q: The mean number of power outages in the city of Manila is 5 per year. Find the probability that in a…

A: Let X be the number of power outages in the city of Manila Mean λ=5

Q: An automated assembly line produces 43,500 parts per duty cycle. The probability that a randomly…

A:

Q: calculate the probability of exactly 3 successes in 4 tries. p=0.27 1-p= 0.73 n=4 k=3

A:

Q: If a probability or 2 place decimal like area is found to be 077 or - 1.09 0.4377, what is the z…

A:

Q: Possible Number of Females in a Family of Frequency Six 3 4 2 a) Determine the total number of…

A:

Q: The proportion of eligible voters in the next election who will vote for the incumbent is assumed to…

A: Solution: From the given information, n = 410 and p = 0.527.

Q: calculate the probability of exactly 1 success in 4 tries. p=0.27 1-p= 0.73 n=4 k=1

A: Ans- Here the random variable X has binomial distribution  With parameter   n = 4, p = 0.27 & q…

Q: Find the probability that exactly five green hats are drawn.

A: A bag contains three red hats, two green hats and one orange hat Eight hats will be drawn at random…

Q: A robot has a probability to solve a puzzle of 47% if the robot tries to solve 10 puzzles. 1. What…

A: A random variable will follow the binomial distribution if it follows the conditions given below.…

Q: Robi has recently hired a batch of new employees. Of the new recruits, 72% were able to meet…

A: Given, Meet expectations = 0.72 Not meet expectations  = 0.28 Out of 72% of satisfactory recruits…