miles Suppose that the speeds of cars travelling on California freeways are normally distributed with a mean of 64 The highway patrol's policy is to issue hour miles tickets for cars with speeds exceeding 75 The records show that exactly 1% of the speeds exceed this limit. Find the standard deviation of the speeds of hour cars travelling on California freeways. Carry your intermediate computations to at least four decimal places. Round your answer to at least one decimal place. miles hour O

Q: The scores in the first column below are from a one-minute free throw shooting contest. Follow the…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Assume the readings on thermometers are normally distributed with a mean of 0°C and a standard…

A: We have given that the readings on thermometers are normally distributed. Mean μ = 0°CStandard…

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A: The table helps to find the value of mean. Midpoint, m frequency, f fm 4.5 31 139.5 14.5 36…

Q: =y 3 5

A: The given data is Low Temperature Frequency 40-44 3 45-49 5 50-54 9 55-59 4 60-64 1

Q: Five students find the following number of pencils in their backpacks: 3, 1, 4, 3, 15. Find and…

A:

Q: Complete the histogram for the x data below. Assume the possible x values range from 0 to 5. The…

A: The possible x values are 0 to 5.

Q: Find the range and standard deviation of the set of data. 260, 263, 266, 269, 272, 275, 278 O

A:

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

A: class f midpoint(x) fx 42-45 22 43.5 957 46-49 13 47.5 617.5 50-53 6 51.5 309 54-57 3 55.5…

Q: frequency table for these data is shown: Time (s) Frequency Calculate the estimated mean to the…

A:

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Q: IQR If data are approximately normal, then 1.3 O A. True O B. False

A: We have given that  If data are approximately normal then IQR /s2 = 1.3

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

A:

Q: Find the range and the standard deviation (correct to two decimal places). 80, 91, 94, 94, 101…

A: Formula: A) Range = Maximum value - Minimum value B)Standard deviation :

Q: The scores and their percent of the final grade for a statistics student are given. What is the…

A: The formula for the weighted mean is, Weighted mean=∑wiXi∑wi In the formula, wi is weight of ith…

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

A:

Q: The data that follows represent the prices of shoes.$60, $59, $85, $99, $95, $100, $116, $75 Find…

A:

Q: Determine whether the given value is a statistic or a parameter. A homeowner measured the voltage…

A: From the given example we need to identify the value is a statistic or a parameter.

Q: The midpoints A, B, and C are marked on the histogram. Match them to the indicated scores. Which…

A:

Q: Pls help ASAP. Pls help with parts d and e.

A: The observations are already arranged in ascending order.  Hence the middlemost observation is the…

Q: Fill in the missing values in the table. Round your responses for the expected frequencies to two or…

A: To fill the missing  values.

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

A: Mean is a measure of central tendency. It is the average value of a set of observations. For a set…

Q: che approximate average mileage per car for the sar mate average mileage for the sample is. ne…

A: a). We see that we have grouped data.The following table shows the required calculations for the…

Q: Part a through c please. Thank you!

A:

Q: Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those…

A: normal distribution μ = 100σ = 15 P(85<x<110) = ?

Q: Assume the readings on thermometers are normally distributed with a mean of 0°C and a standard…

A: The z-score is defined as: z=x-μσ Here, μ=meanσ=standard deviation

Q: The scores and their percent of the final grade for a statistics student are given. What is the…

A:

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

A: Solution: The given data is inclusive. To make this as exclusive the value d/2 should be added to…

Q: Print Refrigerator manufacturers design their freezer units to maintain temperatures within a…

A: a.   Consider that σ2 is the true variance of temperatures of refrigerator.

Q: Find the range for the given data.   The amount that Jeremy has saved in each of the last six months…

A: Given data is,$113  ,  $485  , $189 ,  $590 ,  $394 ,  $276

Q: Find the range for the set of data given. 6 16 4 13 2

A: GIVEN DATA,  here data scores are 6,16,4,13,12we have to find out the range for the givan data

Q: Find the z-score that corresponds to the 67th perentile. O A. 0.44 O B. 0.67 OC. -0.44 O D. -0.67

A: The z-score that corresponds to the 67th percentile will be obtained as given below: The 67th…

Q: le plot for the data. Choose the correct graph below. 400 500 5 OB. 3.00 2.00 1.00- 0.00- -1.00…

A: Given: The data given is as below 350 100 300 50 0 400 200 100 200 450 50…

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

A: The midpoint is, Speed Frequency midpoint fx 42-45 21 42+45/2=43.5 913.5 46-49 13 47.5 617.5…

Q: Find the range for the set of data given. 70 142 38 101 190

A: Here the given data is 70, 142, 38, 101, 190 The range of data is R=gratest number- lowetst number…