A utility random sample survey of 3000 apartments showed that 64 were vacant. The survey was conducted to estimate the amount of energy used by apartments. Estimate the vacancy rate for the entire community using 93% confidence level.

Q: #4 A bowl contains 5 red beads, 6 blue beads, and 3 violet beads. If 3 beads are picked at random,…

A: Given,no.of red beads=5no.of blue beads=6no.of violet beads=3Total no.of beads=14

Q: The sales force of a business consists of 10 men and 10 women. A production unit of 4 people is set…

A: We have, 10 men and 10 women, and we need to select 4  people randomly from them in which at least…

Q: An urn contains 8 red chips, 10 green chips, and 2 white chips. A chip is drawn and replaced, and…

A: It is given that Number of red chips = 8 Number of green chips = 10 Number of white chips = 2 Total…

Q: Two fair 6-sided dice are rolled. Let A = the event that the dice add to 8, and let B= the event…

A:

Q: 32% students get A grade and 68% students get less than A grade in the school  in the class there…

A:

Q: Julia such a passcode and her tablet which only allows five digit codes she has heard that it's more…

A: Given that the password is 5 digit long and there is one digit repeating.The spy knows 4 digits.He…

Q: The probability that a patient recovers from a rare blood disease is 0.4. If 15 people are known to…

A: Solution: From the given data, The probability that a patient recovers from a rare blood disease = p…

Q: Michael plays a free throw game. The probability that he scores is 0.6. Michael takes 5 attempts.…

A: Given,n=5p=0.6A random variable X~Binomial(n=5 , p=0.6)P(X=x)=5x 0.651-0.65-x  ;  x=0,1,2....5

Q: (c) the first is blue and the second and third are not blue

A: total number of beads contains in a bowl = 1414 beads = 5 red beads + 6 blue beads + 3 violet beads3…

Q: shuffled. What is the probability of drawing the letter n? Write your answer in SIMPLES…

A: Each card in a set of cards has one of the letters from the words Lake Nona Middle School. The cards…

Q: fou randomly select one card from a 52-card deck. Find the probability of selecting the seven of…

A: As per given by the question, there are randomly selected one card from 52-card deck. fin the…

Q: An airplane has 100 seats for passengers. Assume that the probability that a person holding a ticket…

A: Let be the random variable the no. of ticket holders who show up for the flight.The probability…

Q: Riding to School The probability that John will drive to school is 0.32, the probability that he…

A: Given that  The probability that John will drive to school =0.32 And probability that he will ride…

Q: Bonus +4 Suppose you roll six dice at once and are asked to find the probability that a 4 was rolled…

A: Given problem Given that   Suppose you roll six dice at once . We have to find the probability…

Q: #4 A bowl contains 5 red beads, 6 blue beads, and 3 violet beads. If 3 beads are picked at random,…

A: GivenNo.of red beads=5No.of blue beads=6No.of violet beads=3Total no.of beads=14

Q: 15. There is an average of month has 30 days. (a) What is the probability of three or more accidents…

A: Given that  Average number of accidents in 30 days = 4 X ~ Poisson (Mean = 4)

Q: Contest You play two games against the same opponent.The probability you win the first game is 0.4.…

A:

Q: Um 1 contains 3 red and 7 white balls. Um 2 contains 7 red and 2 white balls. A ball is drawn from…

A: * SOLUTION :-  Based on above information  the calculations are as follows

Q: 3. A game is played by spinning the two spinners shown at right. The player wins if the two spinners…

A: Sorry, we are not allowed to submit hand-written solutions.   Given that the player will win the…