Amy tosses a fair seven-sided die 2 times. What is the probability she rolls at least 1 four? If necessary, round to 4 decimal places.

Q: A baseball player has a batting average of 0.22. What is the probability that he has exactly 6 hits…

A: Answer: Given that: p= 0.22 , n= 7 now will use Binomial probability P(X=x)=nx*px*(1–p)n–x,where…

Q: A high school baseball player has a 0.217 batting average. In one game, he gets 7 at bats. What is…

A: P(hit) = p = 0.217 no. of trials (n) = 7 x = no. of hits P(x≥2) = ?

Q: The probability that a spark plug is defective is 35%. Suppose that a person buys 7 spark plugs.…

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Q: A high school baseball player has a 0.266 batting average. In one game, he gets 6 at bats. What is…

A: The batting average is given as, .The no. of bats, .In this case, each batting has only options of…

Q: What is the probability that she has her first successful ticket on the 4th try

A: Let p be the probability of winning. Given that p = 0.07 Let X denote the try number on which she…

Q: The probability that a student in driving lesson will pass the written test for a non professional…

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Q: A history class is comprised of 8 female and 7 male students. If the instructor of the class…

A: Given that Female students =8 Male students=7 Randomly selected students= 8

Q: Suppose you roll a special 22-sided die. What is the probability that the number rolled is a "1" OR…

A: Given that  Roll a 22-sided die  Sample space=S…

Q: Andre is 70% free throw shooter. If he attempts 20  foul shots, what is the probability that he…

A: Solution: Let X be the number of shots sink and n be the number of foul shots. From the given…

Q: The Gallup Poll reported that  52%  of Americans used a seat belt the last time they got into a…

A: Let X be number of people used a seat belt the last time they got into a car from binomial…

Q: What is the probability of Reaching into the box and Randomly drawing swer the Chip numbered 540.…

A: Given The chip numbered 540

Q: 8% of Dr. Williams patients end up with 20-30% vision or better. Find the probability that exactly 4…

A: Let the give data be probability of patients getting well = 0.98 The number of patients. n = 4

Q: In a very delicate operation, the only chance of survival is 80 percent. Find the probability that…

A: 90% of 10 patients is X= 90*10/100 = 9 X= 9  We've to find the probability that exactly 9 patients…

Q: Calculate the probability that one of the next 6,827 times the slot machine is played, a jackpot is…

A: Here given ,  The chance of winning a jackpot on a certain slot machine is 1/17500​  . Next 6827…

Q: Alex makes 20% of his hockey goals that he attempts.  For a practice, he likes to shoot goals at the…

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Q: A baseball player has a batting average of 0.335. What is the probability that he has exactly 5 hits…

A: Answer - A baseball player has a batting average  = 0.335   i.e  p = 0.335               n = 7   and…

Q: Jane tosses a fair die 3 times. What is the probability she rolls at least 1 five? If necessary,…

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Q: Find the probability that at least 5 heads show up when a fair coin is tossed 7 times. Round your…

A: Givenprobability of getting head =12=0.5n=7Let "x" be getting…

Q: Terry purchases 25 scratch off lottery tickets. Each ticket has a 10% chance of winning. What is the…

A: Given: Sample size (n)=25. The probability of winning is p=10%=0.10.

Q: You roll a single six-sided die numbered from one through six. What is the probability you roll a…

A: We we roll a single six-sided die then the possible sample space is S = { 1,2,3,4,5,6} n(S) = 6

Q: Terry purchases 30 scratch off lottery tickets. Each ticket has a 10% chance of winning. What is the…

A: Given: The sample size is n= 30. The probability of winning is p=10%=0.10.

Q: A student takes a true-false test but did not study and randomly guesses each answer. There are 20…

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Q: Find the probability of selecting three different orders from Pinky Pie’s Café. Round to four…

A: From the table total number of order is, 329+33+264+54+249+31+145+13=1118 total number of order from…

Q: Find the probability of getting five multiple-choice questions answered correctly, if for each…

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Q: The mean life of a person who has had a heart transplant is about 12 years. Find the probability…

A: Answer: From the given data, Mean life of a person who has had a heart transplant is = λ = 12 years…

Q: Determine the probability of 3 out of 5 people getting accepted into a graduate program, where the…

A: The question is about prob. dist. Given : Total no. of people ( n ) = 5 Prob. of selecting single…

Q: A quick quiz consists of a true/false question followed by a multiple-choice question with 6…

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Q: John runs a computer software store. Yesterday he counted 131 people who walked by the store, 66 of…

A:

Q: A baseball player has a batting average of 0.395. What is the probability that he has exactly 3 hits…

A: p(hits basket ball) = p = 0.395 sample size,  n = 7 x = No. of hits by player p(x=X) = nxC * px *…

Q: In a department store there are 193 customers, 73 of whome will buy at least one item. If 4…

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Q: A baseball player has a batting average of 0.355. What is the probability that he has exactly 4 hits…

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Q: (d) Tomorrow, the same local weather report will be given. Estimate the probability that it will be…

A: The tables shows the results of 365 consecutive days and compares whether it rained or not to…

Q: Terry purchases 29 scratch off lottery tickets. Each ticket has a 8% chance of winning. What is the…

A: If the occurrence/non-occurrence of an event does not affect the occurrence/non-occurrence of other…

Q: John runs a computer software store. Yesterday he counted 132 people who walked by the store, 69 of…

A: GivenNo.of people who walked by the store=132No.of people came into the store=69No.of people bought…

Q: Camilia sets up a passcode on her tablet, which allows only nine digit codes. A spy sneaks a look at…

A: According to the question, the password has a 9 digit code. Given that the spy sees her fingerprints…

Q: Approximate the probability (4 decimal places) of less than 9900 hits in a day.

A: Hiven ,Hits follow poisson distributionmean (μ) = λ = 10000 per daystandard deviation σ = λ = 10000…

Q: r has a batting average of 0.292.  Find the probability that the player will get at least 2 hits in…

A: This is the case of binomial, as there are only two possible outcomes which are independent and…

Q: Terry purchases 30 scratch off lottery tickets. Each ticket has a 10% chance of winning. What is the…

A: Probability of getting first succes at x=10th trial is =0.0388