Pupils Per Teacher The frequency distribution shows the average number of pupils per teacher in some states of the United States. Find the variance and standard deviation for the data. Round your answers to one decimal place. Class limits Frequency 8-10 2 11-13 16 14-16 11 17-19 8 20-22 1 23-25

Q: Clinton. The standard deviation was 555. (There are only 40 election districts in Alaska.) The…

A: Draw the normal curve and shade the area between z=0.3441 and z=0.8324. The required shaded area…

Q: mean of 665 ounces and a standard deviation of 11 ounces.  Use the Empirical Rule.

A: Given that, The widget weights follows normal distribution with mean of 665 and standard deviation…

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

A: Solution: Let X be the age. The given data is 12, 15, 23, 13, 21, 16, 20, 16, 14, and 18

Q: someone searching for a room? 275 122 182 157 266 102 205 120 The range of the sample data is (Round…

A: Solution

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

A: Given data:- 12,17,23,14,13,18,21,16,14,19Range=maximum-minimum=23-12=11Mean =…

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

A: Formulae : 1) Range = Maximum value - Minimum value 2) Mean : x¯ = ∑xn 3) Sample Variance : s2 = ∑x2…

Q: Instruction: Dr. Jason wants to determine the spread of the scores of his two classes in their final…

A: Given that: Class A x f 90-98 3 81-89 7 72-80 7 63-71 11 54-62…

Q: Q#3 Coffee With Meals: A researcher wishes to determine the number of cups of coffee a customer…

A: Given information- We have given the distribution, using this we have to find mean, variance, and…

Q: A statistics professor gives a survey to each of the 100 students in an introductory statistics…

A: Obtain the population standard deviation:

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

A: Solution: Let X be the age. The given data is 12, 19, 23, 13, 14, 17, 19, 16, 14, and 19

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

A:

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

A:

Q: Question * Test scores for a given class are normally distributed with a mean of 80 and standard…

A: Let X be the test scores  from normal distribution with mean (μ) = 80 and standard deviation (σ) =…

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

A: Here we need to find the Range, mean , variance and the standard deviation of the sample.

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

A: Given data,   12, 17, 23, 15, 14, 18, 21, 16, 14, 15   The objective is to find the Range, Mean,…

Q: The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget…

A: Given:X: Widget weightsMean = μ = 56Standard deviation = σ = 3Empirical rule tells us that within…

Q: The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget…

A: Empirical rule give the value in form of 68, 95 and 99.7% distribution

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

A: Range:In the given sample data set, the maximum value is 23 and the minimum value in the data set is…

Q: DATAfile: Houston You may need to use the appropriate appendix table or technology to answer this…

A: (a) Obtain the margin of error at the 99% confidence interval. The margin of error at the 99%…

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

A:

Q: Pupils Per Teacher The frequency distribution shows the average number of pupils per teacher in some…

A: From the given information,

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

A:

Q: The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget…

A: Given information, The distribution of widget weights is bell-shaped. The widget weights have a mean…

Q: The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget…

A: Solution: a. Let X be the widget weight. From the given information, X follows normal distribution…

Q: Pupils Per Teacher The frequency distribution shows the average number of pupils per teacher in some…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget…

A: (12) Let X be the random variable from normal distribution with mean (μ) = 49 and standard deviation…

Q: The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget…

A: Empirical rule: If a population has bell-shaped distribution with mean µ and standard deviation σ ;…

Q: The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget…

A: Given that  μ=52 , ?= 8 X~Normal(μ=52 , ?= 8)

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

A: Obtain the value of range.   The value of range is obtained below as follows:   The formula of range…

Q: Pupils Per Teacher The frequency distribution shows the average number of pupils per teacher in some…

A:

Q: The Acme Company manufactures widgets. The distribution of widget weights is bell- shaped. The…

A: Given  X~ N(mu=39, sigma^2=-^2)

Q: The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget…

A:

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: The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget…

A: Empirical Rule : The Empirical Rule states that the area under the normal distribution that is…

Q: The ages (in years) of a random sample of shoppern at a gaming store are shown. Deteremine the…

A:

Q: The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget…

A:

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

A: Solution

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

A: Given data, 12,18,23,14,21,17,22,16,13,16 Range: Range =Maximum value –Minimum value =23-12 =11

Q: The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget…

A:

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

A: The number of observations is 10.

Q: The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget…

A:

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

A: The given data set shows the ages of a random sample of shoppers at a gaming store.

Q: The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget…

A: It is given that Mean = 58 And SD = 6 Distribution : bell-shaped

Q: Homework Assignment Find the range and standard deviation. The table below gives the number of hours…

A: See the handwritten solution

Q: The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget…

A:

Q: 1.aWhat does a z-score measure? A z-score measures the number of standard deviations a value is…

A: (a)   Identify the correct option for the given statement.   The correct option for the given…

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

A: Solution

Q: The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget…

A: It is given that the widget weights follows normal distribution with mean of 48 and standard…

Q: What is the average female height? 2. What are all the differences from the mean? 3. What is the…

A: Given, Number of elements= 5 Elements= {50,51.5,53,53.5,54}

Q: The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget…

A: It is given that the widget weights follows normal distribution with mean of 46 and standard…