A random number generator picks a number from 1 to 21 in a uniform manner. Round all answers to two decimal places. A. The mean of this distribution is=___________________ B. The standard deviation is=______________ C. The probability that the number will be exactly 15 is P(x = 15) =_____________

Q: The probability that a seed germinates is 55%. Plant 5 seeds. Let the random variable X be the…

A: The given information is:The number of trials is The success of probability

Q: Fitness Machine A fitness center bought a new exercise machine called the Mountain Climber. They…

A: To find: 1.Mean 2.Variance 3.Standard deviation

Q: The numbers of courses taught per semester by a random sample of university professors are shown in…

A: Given: The random variable X is the number of courses taught per semester by the university…

Q: 50, 1.5, -2.5, -.25,-.5, 1.25

A: given data, normal distributionμ=60σ=12value of X for the given z -scores=?

Q: In a batch of 2170 boxes of cereal, there are, on average, 12 with prizes. If a random sample of 170…

A: Given: Total number of boxes of cereal = 2170 On average prizes = 12 Probability of success p =…

Q: None

A: Step 1:Given data : Sample size n=49Sample mean xˉ=490Sample standard deviation s=98 Step 2:we need…

Q: X P(=x) 0 0.05 1 0.05 2 0.2 4 0.3 5 0.2 6 0.1 7 0.1     What is the expected numer of times a…

A: Solution: Let X be the number of times a person does floss a week. From the given information, the…

Q: d. The probability that the child will be between 4.99 and 5.39 years old is e. If such a child is…

A: It is given that the age of children in kindergarten on the first day of school is uniformly…

Q: A-3. The daily revenue at a restaurant in London has been recorded for the past several years.…

A: The provided information is  µ=10000σ=1500 Then, a. C. Normal

Q: A psychologist obtains a random sample of 20 mothers in the first trimester of their pregnancy. The…

A:

Q: Which of the following statement is TRUE ? Group of answer choices The formula to compute the…

A: The objective of the question is to identify the correct statement among the given options related…

Q: ← Use the accompanying life table for a population of a certain region in 2010 to find the…

A: The probabilities of dying during the interval for different intervals are given.

Q: Below are Z-scores. What percentage of the population has a HIGHER score than each individual? ( Z…

A: The z-score of a random variable X is defined as follows: z = (X – µ)/σ. Here, µ and σ are the mean…

Q: Find the mean, variance, and standard deviation of the binomial distribution with the given values…

A:

Q: he day of the week for which 777 randomly selected fatal bicycle accidents occure hat the…

A: Applying Chi-square test, Expected frequency (E) =  Total/n  = 777/7 = 111 Chi-square test statistic…

Q: c. The probability that the the child will be older than 5 years old? 0.8571 d. The probability that…

A: given data, uniform distributionX~U(4.88 , 5.72)age is  between 4.88 and 5.72 years old

Q: D.The probability that the number will be between 4 and 8 is P(4 15) = F. P(x > 5 | x < 11) =____

A:

Q: Which of the scenarios below will produce the largest z score? Group of answer choices A score that…

A: We need to answer , Which of the scenarios below will produce the largest z score?  Group of answer…

Q: n 1940 the average size of a U.S. farm was 174 acres. Let's say that the standard deviation was 59…

A: Given that μ=174, σ=59 n=46 Distribution of X¯: X¯~Nμ,σnX¯~N174,5946X¯~N174, 8.70

Q: Here are the shopping times (in minutes) for a sample of 6 shoppers at a particular computer store.…

A: The given data is as follows:43, 39, 39, 36, 44, 33

Q: The average size of a farm in Texas is 185 acres. The average size of a farm in Kansas is 220 acres.…

A: Given,  x1 = 185,  n1 = 10, s1 = 40x2 = 220,  n2 = 12, s2 = 15 α = 0.05 degree of freedom, n1+n2-2…

Q: The claim is that the proportion of peas with yellow pods is equal to 0.25 (or 25%). The sample…

A:

Q: The manufacturer of large liquid crystal displays ( LCD's) is difficult. Some defects are minor and…

A: Provided information, Sample mean(X bar)=2.467 Sample Standard Deviation=s=3.057 Sample size(n)=45…

Q: 17A population has mean u 7 and standard deviation o = 2. %3D a Find the z-score for a population…

A: Givenmean(μ)=7standard deviation(σ)=2

Q: A random number generator picks a number from 4 to 56 in a uniform manner. Round answers to 4…

A:

Q: The variability of the scores in a sample tends to be _____ the variability of the scores in the…

A: As, we know that larger the size of population,  larger the variability in the population,  if we…

Q: Use the following information to answer problems 13 and 14. Cholesterol levels among 14-year-old…

A:

Q: Driver’s Education. In order to determine whether or not a driver’s education course improves the…

A: Score After (x1): n=7 Mean(M1)= (92+86+...97)/7 M1 =90.71 df1=n-1 = 6   Score After (x2): n=7…

Q: According to Quantcast analytics of CrossFit.com, 59% of CrossFitters have children. Suppose we take…

A: From the provided information, 59% of Cross Fitters have children that is p = 0.59 Sample size (n) =…

Q: Property 1. Algebraic sum of the deviations of a set of values from their arithmetic mean IS zero.…

A:

Q: Cost of Pizzas A pizza shop owner wishes to find the 95% confidence interval of the true mean cost…

A: Margin of error(E)=0.16Standard deviation()=0.48

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.