Area = 0.2033 Z3D70

Q: in a pie chart, if a category has a relative frequency of 30%, then its sector takes up 30% of the…

A: Pie chart: Pie chart is a statistical graph which explains the relative frequencies of different…

Q: The top schools HCC students transfer to are below from highest to lowest.  This type of data is…

A: We have given the following statement

Q: summary of the data. Be sure to include the screenshot of excel of your answers and formulas/command…

A: The given dataset about a sample of 105 parking infrastructures in Toronto, Ontario, Canada, for…

Q: What is the percentage of scores that lie between a z score of -2 and a z score of 1?

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Q: With the data below, prepare a box graph (summary of five (5) numbers): 114, 90, 85, 123, 98, 78,…

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Q: For the data set {0.7, 0.2, 0.4, 0.5}, find î

A: The given data set has the observations:{0.7, 0.2, 0.4, 0.5}The objective is to obtain x~, i.e., the…

Q: The accompanying data sets represent the annual rate of return (in percent) of eight randomly…

A: (e) Find the mean, standard deviation, and coefficient of variation for the both variables by using…

Q: The dot plot below represents this set of data: 8, 7,5, 5, 4, 2, 3, 3, 4, 6, 5, 4, 5, 5 True .. ..

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Q: Alex is 80th in his class of 320 students. What is his percentile rank in class?

A: Data given p=80, n=320

Q: Is the Median a good way to represent the number of points scored per game for all the players?

A: Is the Median a good way to represent the number of points scored per game for all the players ?

Q: There is one low outlier in the plot. The price of beer (per ounce) and price of a hot dog for this…

A: If the observation is far from the remaining observations, then the observation is said to be an…

Q: 6. Mr. Landis created a steam and leaf plot to represent the scores his students made on the final…

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Q: Find the z-score that cuts off 40% in the tail on the left

A: Our aim is to find the find the z-score that cuts off 40% in the tail on the left

Q: The scores of the top ten finishers in a recent Buick Open are listed below. Find the median score.…

A: We have given that,  The data set are : 65, 66, 67, 66, 67, 70, 67, 70, 71, 68 Then,  We will find…

Q: Describe the formula used to calculate a z-score?

A: The formula used to calculate z-score is

Q: A retailer wants to see if a red "Sale" sign brings in less revenue than the same "Sale" sign in…

A: The random variable Sale sign follows normal distribution. There are two independent samples which…

Q: Select the graph that shows the scatterplot of the data set. Y 4 1 -5 -3 1 - 5 - 1 1 7 - 5

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Q: the value of so that 92.3% of the data lies to the right of

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Q: How do you find the median of X?

A:

Q: Find the midrange for the following group of data items. 112, 52, 82, 52, 72 ​(Round to the nearest…

A: Midrange:The midrange is defined as the average of highest and lowest value in the data set.That is,…

Q: The value of a certain car when it was brand new with 0 mileage was $17,000 but the value dropped to…

A: The given scatter plot is a linear and it's slope is negative. Given that, at zero miles the value…

Q: how did you find the Z score?

A: The critical value  of z for 97% confidence  interval  is 2.17.

Q: An insurance company crashed four cars in succession at 5 miles per hour. The cost of repair for…

A: Give the data values $421 $465 $412 $218 Range definition: The difference between the maximum…

Q: Thanks. Why is Kathy's score considered better-is it because it is a posituve score? What does the Z…

A: Bobby' Z- score ( wasZ=Bobby's score  of 1080 was between 1 and 2 standard deviation above the mean…

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.