In a distribution where the mean is 80 and the standard deviation is 3​, find the largest fraction of the numbers that could meet the following requirements. less than 71 or more than 89 Of the numbers in the​ distribution, the fraction that is less than 71 or more than 89 is at most _________________ (Type a simplied fraction)

Q: Find the range and standard deviation of the set of data. 11, 8, 7, 13, 16 D

A: The range of a given data is, Range (R)=Maximum value-Minimum Value And the standard deviation is,…

Q: Find the range, the standard deviation, and the variance for the given samples. Round non-integer…

A: Use EXCEL Procedure for finding the values of range, standard deviation and variance.   Follow the…

Q: The ages (in years) of a random sample of shoppers at a gaming store are shown. Determine the range,…

A:

Q: This population has a mean of 50. If we took an infinite number of samples and got the mean of each…

A:

Q: Use the Central Limit Theorem to find the mean and standard error of the mean of the sampling…

A: The mean is 241, the standard deviation is 70 and the sample size is 34.

Q: Find the mean of the data summarized in the given frequency distribution. Compare the computed mean…

A: The actual mean is 47.4Speed(miles per hour)42-4546-4950-5354-5758-61Frequency2315642

Q: A research firm claims that the distribution of the days of the week that people are most likely to…

A: The question is about categorical data analysis.Given :

Q: Calculate the sample standard deviation for this data set: 88, 73, 91. The formula for the sample…

A: Given: Data set:88,73,91. n=3 Step 1: The sample mean is calculated as x¯=∑xin=88+73+913=84 Thus,…

Q: Find Ztest Round your answer to the nearest hundredth A

A: n=100, x¯=703μ=720,σ=92

Q: The scatterplot illustrates the relationship between distance and success rate of field-goal…

A: Given,

Q: The average time for a student to complete this quiz is 24 minutes with a standard deviation of 2…

A: We have given that,  The students quiz are normally distributed with mean(mu) = 24 and standard…

Q: Subtract 30 from each item in the given sample, and compute the mean and standard deviation of the…

A: Answer:- Given sample is,  36, 44, 38, 35, 45, 36, 32 Now subtracting 30 from each item in the given…

Q: Goodyears mean is 6 Silents mean is 3.54   The sample standard deviation for the Goodyear…

A: The formula for Z score is, Z=X-μσ Here  μ and σ is the mean and standard deviation. Unusual…

Q: The numbers of regular season wins for 10 football teams in a given season are given below.…

A:

Q: Listed in the data table are IQ scores for a random sample of subjects with médium lead levels in…

A: The IQ scores are Medium lead level High lead level 72 n2=11 x2=91.088 s2=10.092 97 92…

Q: The ages (in years) of a random sample of shoppers at a gaming store are shown. Determine the range,…

A: Consider, x =12, 20, 23, 14, 15, 17, 22, 18, 15, 18

Q: Find the range and standard deviation of the set of data. 12, 10, 5, 13, 15 O

A:

Q: Assume you have taken 125 samples of size 81 each from a population. The population variance is 64.…

A: answer is 0.88

Q: ← Suppose that you take an exam with 391 possible points and are told that that mean score is 270…

A: Mean() = 270Standard deviation () = 22

Q: A sample of 3000 observations has a mean of 80 and a standard deviation of 10. The distribution is…

A: Given Data: x¯=80s=10   The empirical rule is also known as 68-95-99.7 rule According to the…

Q: The ages (in years) of a random sample of shoppers at a gaming store are shown. Determine the range,…

A: Solution: x x^2 12 144 19 361 23 529 14 196 20 400 17 289 22 484 16 256 14 196…

Q: Annual Precipitation (Inches) Stem Leaf 0 6 1 9. 2| 127 3 356 434 5 036 6. 68

A: From Given stem and leaf  plotThe data values…

Q: Today, the waves are crashing onto the beach every 4.6 seconds. The times from when a person arrives…

A: 75 % of 4.6 seconds = 0.75*4.6 = 3.45 Therefore, 75% of the time a person will wait at least 3.45…

Q: The ages in years of a random sample of shoppers at a gamming store are shown. 12, 17, 23, 13, 20,…

A:

Q: Q3: Calculates Mean, Median, Mode, Variance and Coefficient of variation. Also show that: Q1 = P25,…

A: Please find the solution below. Here we should find Mean, Median and Mode.

Q: A simple data set has been provided to practice the basics of finding measures of variation. 2, 4,…

A: The number of observations is .

Q: the mean and standard error of the mean of the sampling distribution. Then sketch a graph of the…

A:

Q: The ages (in years) of a random sample of shoppers at a gaming store are shown. Determine the range,…

A: Range: Range is the difference between lowest and highest value of data set.   Here, Lowest value=…

Q: Solve the following and get the range and variance with the data 25,27,30,32,32,40,45,46,47,48

A:

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.