5. A multiple-choice test contains 25 questions, each with four answers. Assume a student just guesses on each question. (10 points) a. What is the probability that the student answers more than 20 questions correctly? b. What is the probability the student answers less than 5 questions correctly?

Q: A bag of M and Ms contains eight red, 13 blue, two orange, 15 yellow, 14 green, and six brown. What…

A: Given Number of green M&M=14 Number of red M&Ms=8 Number of blue M&Ms=13 Number of…

Q: a. What is the mearn the original samples have n = 4 scores? b. What is the mean for the combined…

A: From provided information; one sample has a mean M1= 8 and second sample has mean M2=16, two samples…

Q: What is the probability of choosing a number from 1 to 10 that is less than 5 or odd?

A: Solution

Q: A literature professor decides to give a 10-question true - false quiz to determine who has read an…

A: The given scenario satisfies the characteristics of binomial distribution.Formula for binomial…

Q: (a) What is the probability that a randomly selected bag contains between 1000 and 1400 chocolate…

A: Let X denote the number of chocolate chips in a bag. Given that X follows N(mean = 1252, SD = 129),…

Q: Suppose the probability of an IRS audit is 2.0 percent for u.s taxpayers who file form 1040and who…

A: Given information- The probability of an IRS audit is 2.0 percent for U.S taxpayers. So, Number of…

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A: “Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: A. What is the probability of having 4 heads, if you toss 4 coins? & B. What is the probability…

A: Sample space for toss 4 coins is given by  There are 24=1624=16 possible outcomes.  S= {  HHHH ,…

Q: What is the probability 106 randomly selected people have an average body temperature is greater…

A: Sample Size = 106 Mean = ∑xi*Frequency∑Frequency  , where xi is the temp value The standard…

Q: the sample space for tossing  three fair coins is [HHH,HHT,HTH,HTT,THH,THT,TTH,TTT]. what's the…

A: 3 fair coins are tossed.  The sample space S={HHH,HHT,HTH,HTT,THH,THT,TTH,TTT}

Q: A bag of the same size small balls contains 6 blue balls, 5 red balls, 5 yellow balls, and 4 green…

A: There is total 6 blue balls, 5 red balls, 5 yellow balls, and 4 green balls.

Q: 2. What is the probability of creating a salad with ice berg lettuce with Ranch dressing and one…

A: Given information: The given information is as follows:

Q: (b) What is the probability that the mean response time to these 49 emails will be between 4 hours…

A: It is given that Mean = 4.4 SD = 9.1 Sample size n = 49

Q: Suppose 40% of college students plan to vote in the election. Now suppose we randomly select 200…

A:

Q: 4. When tossing a pair of dice, what is the probability (expressed as a fraction) of tossing a sum…

A: Solution: 4. Suppose two dice are rolled. Then, the sample space is Number of elements in the…

Q: Q9. What is the probability that a randomly chosen number among these data points is between 95 &…

A: Given that, Total number of data values nS=16

Q: if a true-false test with 5 queations is given, what is the probability of scoring (A) exactly 80%…

A: To calculate the probabilities of the required events under the given conditions

Q: A multiple choice test contains 40 questions, each with four answers. Assume a student just guesses…

A: Answer:- Given a multiple choice test contains  n = 40 questions, each with four answer…

Q: (13.) If you are picking a number between 1-20 what is the probability that you will pick a multiple…

A:

Q: The probability that [a woman in this cohort] has breast cancer is 0.8 percent. If a woman has…

A: Given  P breast cancer=0.8 P a positive mammogram/breast cancer=0.90 Pa positive mammogram/no breast…

Q: b) (i) If you were to roll the pair of dice once, one die at a time and record the values, describe…

A: i) Outcomes of the experiment   ii) Total number of outcomes are n(S) = 36

Q: b. What is the probability that the sample proportion will be between 0.20 and 0.40 (to 4 decimals)?…

A: Given: Population proportion, p=0.30 Sample size, n=100

Q: b. What is the probability that the sample proportion will be between 0.20 and 0.40 (to 4 decimals)?…

A: here from given information  p = proportion of firm order come from first time customer  = 0.30 n=…

Q: According to a 2009 Reader's Digest article, people throw away about 14% of what they buy at the…

A: Given data, p=14% =0.14 n=144 P(p<0.2)=?

Q: What is the probability of selecting a left-handed person?

A:

Q: You are randomly selecting a sample of 12 participants for your research. The probability of…

A: Let, x be no of women  given. n=12 P(women) p=0.70 q=1-p=0.30

Q: a. What is the sample space? b. What is the probability of selling 5 laptops the next day? c. What…

A: here use given table sample space is set of all possible outcomes here outcomes as number of laptops…

Q: What is the probability of rolling a dice a) get an odd number of dots? b) get three dots? c) get at…

A: The outcomes if a dice is rolled are written as: S={1,2,3,4,5,6}Here, Odds number of dots = 3 Total…

Q: 3. Answer the following, related to tossing a biased coin 8 times, where the probability of a HEAD…

A: Given information:- PHead=25PTail=1-PHead=1-25=35 Number of times coin is tossed = 8

Q: Suppose you take a 20 question multiple choice test, where each question has four choices. You guess…

A: Givensample size(n)=20each question has four…

Q: 4. When tossing a pair of dice, what is the probability (expressed as a fraction) of tossing a sum…

A: Tossing a pair of dice has 36 total possibilities. i.e., 62=6×6=36 Let A be the event that the sum…

Q: 4. A coin is tossed 25 times. Estimate the chance of getting 12 heads and 13 tails.

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Q: 26. If a true-false test with 10 questions is given, what is the probability of scoring (A) Exactly…

A:

Q: 3. A manufacturer says the probability of their product being defective is 19%. If your company buys…

A: From the given information we find the solution.

Q: Suppose the probability of success is p=31%. What is the probability of 7 successes in 8 trials?

A: Let x follows binomial distribution with parameters n = 8 and p = 0.31   The pdf of binomial…

Q: If a true-false test with 15 questions is given, what is the probability of scoring (A) Exactly 80%…

A: As per our policy we can solve only 1 question per post. Kindly repost for remaining questions.…

Q: Jan wants 3 children. Assuming both boy and girl babies are equally likely., a) What is the sample…

A:

Q: Write down the sample space for the outcome when flipping a fair coin three times... What is the…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: A,B,and C

A:

Q: a) What is the probability of selecting students whose IQ ranges between 110 and 127? b) If you will…

A: The IQs of 100 students are normally distributed with a mean of 115 and a standard. deviation of 10.…

Q: 28. What is the sample mean of these 16 data points? 29. What is the probability that a randomly…

A:

Q: Problem : What is the probability of having not more than 20 failures if p= 0.14?

A: We have given that  Number  of trials n =100 Success of probability p=0.14

Q: What is the probability of being dealt two kings in a row from a deck of cards without replacing the…

A:

Q: If the prevalence of a certain condition in the population is 0.4. What is the probability that…

A: Answer: Given that: p= 0.4 , n= 10 now will use Binomial probability P(X=x)=nx*px*(1–p)n–x,where…

Q: a) What percentage of the sardines is shorter than 4 inches? b) The middle 70% of the distribution…

A:

Q: A multiple-choice test consists of 27 questions with possible answers of a, b, c, d. Estimate the…

A:

Q: (b) What is the probability of getting a sum of 13 when 3 fair dice are rolled?

A: GivenIf we roll three fair dies than the possible total out comes are=63=216 The possible outcomes…

Q: 4(b). What is the probability that the sample proportion of voters who will favor Michael will be…

A:

Q: Suppose the probability of an IRS audit is 4.0 percent for U.S. taxpayers who file form 1040 and who…

A: It is given that the probability of an IRS audit for U.S. taxpayers who file form 1040 and who…