A business man receives an average ofT 2 e-mails per hour. The probability that at most 4 e-mails will be received in 3 hours is: 0.2851 0.4457 0.9473

Q: 2. For the following discrete variable with probability f(x) 1 3 4 f(x) 0.2 0.15 2c 0.05 0.15 (b)…

A: Given:

Q: There is an average of 4 accidents in a week on a major highway in the city. What is the the…

A: Given,The average no.of accidents in a week (λ)=4Let X=no.of accidents in a week…

Q: The weekly average number of airplane crashes is 5. Whatis the probability that there will be (a

A:

Q: In a large population, 59% of the people have been vaccinated. If 5 people are randomly selected,…

A:

Q: A survey finds customers are charged incorrectly for 1 out of every 10 items. Suppose a customer…

A: Binomial distribution is given by

Q: A baseball player has a batting average of 0.4. What is the probability that he has exactly 5 hits…

A: Given data, P(hit) = p = 0.4 n=7 bats X = no. of hits  P(X=5)=?

Q: A math professor finds that when she schedules an office hour for student help, an average of 2.3…

A: Step 1:The probability mass function of the poisson distribution is given by…

Q: ut of 23 students in a class, 10 major in Science. Find the probability that two randomly selected…

A: Given : sample size, n = 23 10 major in Science  Number of ways of selecting two students from…

Q: The mean life of a battery is 50 hours with a standard deviation of 6 hours. The manufacturer…

A:

Q: A nervous kicker usually makes 72% of his first field goal attempts. If he makes his first attempt,…

A: From the provided information, P (makes first field goal attempt) = 0.72 P (Makes second attempt|…

Q: In a communication channel, data is sent in 10-bit packets. The percentage of a bit sent with error…

A: Given In a communication channel, data is sent in 10-bit packets. The percentage of a bit sent with…

Q: lobe has a number of inquiries arriving in their system at 3 inquiries per minute. What is the…

A: Consider X denotes inquiries arriving in the system which follows Poisson distribution with λ=3.

Q: In a survey of college students, 840 said that they have cheated on an exam and 1765 said that they…

A: Given that Number of students who have cheated =840 Number of students who have not cheated =1765 If…

Q: The average number of field mice per acre in a 5-acre wheat field is estimated to be 8. Find the…

A: Given The average number of field mice per acre in a 5-acre wheat field is estimated to be 8. Find…

Q: In a communication channel, data is sent in 10-bit packets. The percentage of a bit sent with error…

A:

Q: The probability that a student pilot passes the written test for a private pilot's license is 0.55.…

A: Probability distributions are of two types, discrete and continuous distributions. Binomial…

Q: In a large population, 61% of the people have been vaccinated. If 5 people are randomly selected,…

A: From the given information, Sample size (n) = 5, Probability of success (p) = 0.61.

Q: If a seed is planted, it has a 95% chance of growing into a healthy plant. If 11 seeds are…

A:

Q: 62 out of 136 people suffered some type of depression last year. Find the probability that if you…

A: Given n=5

Q: In a large population, 62 % of the people have been vaccinated. If 4 people are randomly selected,…

A: It is given that p=0.62 and n=4.

Q: if a player's batting average is 0.320, find the probability that the players will get exactly 24…

A: Given That, A baseball player’s batting average is 0.320 (32%). This player batted 100 times.

Q: In a communication channel, data is sent in 10-bit packets. The percentage of a bit sent with error…

A: Introduction: Denote X as the random variable of interest here, which is the number of bad bits in a…

Q: terback completes 67% of his passes, what is the probability that he will not complete his

A: A: The quarterback will complete passes The probability of passing is  P(A) = 0.67

Q: In a survey of college​ students, 808 said that they have cheated on an exam and 1770 said that they…

A: Given that in a survey of college​ students, 808 said that they have cheated on an exam and 1770…

Q: Suppose a batsman can hit the ball 50% of the time. Assume that the batsman has seen 6 balls and hit…

A:

Q: Marco is a basketball player who succeeds 90% of his free throws. What is the probability that he…

A: the probability that Marco succeeds in minus 7 of his next 10 free throws, you can use the binomial…

Q: What is the probability that 5 particles enter the counter in any given millisecond?

A: Let X denote the number of particles passing through a counter in 1 millisecond.

Q: Doctors have indicated that 33% of the US population has A+ blood which is the second most common…

A:

Q: A number of customers arrive at a cafeteria during lunch hour at an average rate of 0.025 per…

A: Reviewing information, X: Average rate of arrival of customers= 0.025 per second

Q: Suppose a basketball player has a 84% of making his free throws.  Assume that the free throws are…

A: Given,sample size(n)=3p=P(misses free throws)=1-0.84=0.16A random variable X~Binomial(n=3 ,…

Q: When manufacturing fabric, the mean number of imperfections per yard of fabric is 0.12. Find the…

A: Given information- We have given the problem of Poisson distribution. Mean no. of imperfections per…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.