If the mean is 25 for the data: 20, 30, 15, 24, у, 8

Q: If there were drivers who drove 80 or 85 mph would the mean stay the same or get higher or lower?

A: The given frequency table is shown below: x f 85 2 80 3 75 15 70 20 65 50 60 45 55…

Q: 3. If the median of the data set x, i ..n? the data set 2x+3. i 1, 1..n, is 10, what is the median…

A:

Q: Given the following data, the middle 20% is between the scores ___ and ___. The value of Q1 is ___.…

A: 66, 69, 70, 73, 73, 76, 77, 78, 79, 82, 86, 87

Q: Find the range for the group of data items. 11, 12, 13, 14, 15

A: We have given that data  11, 12, 13, 14, 15 I want to find Range Formula used  Range = max - min

Q: If the mean is 22 for the data: 20, 10, 12, 24, 8, y find the median O 58 O 20 O 16 O 12

A: Ans : Option C - 16

Q: Given the following list of values, is the mean or the median likely to be a better measure of the…

A: The mean is commonly chosen as the best central trend measure since it is the measure which includes…

Q: Find the median of the data set. {5, 0, -1, 5, 2, 3, 7, 2} O 5 O 2.5 O 2 O 3.5

A:

Q: 4 4 3 2 2 О-2 3-5 6-8 9-11 12-14

A: Histogram

Q: Make up two data sets with 5 numbers each that have the same mean but different medians

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Consider the data set ( 11, 8, 8, 10, 8 , 10 , 7, 9 ) . Add 4 to each observation . What is the…

A: Given the data set ( 11, 8, 8, 10, 8 , 10 , 7, 9 ) . Adding 4 to each observation  we get…

Q: what is the mean of this data set 24, -6, 5, 35, 0, -8, 36,7

A: The Given data set is  24, -6, 5, 35, 0, -8, 36,7

Q: Find the weighted average of a data set where 10 has a weight of 2, 20 has a weight of three and 30…

A: The weighted average is defined as, where wi is the weight, and xi is the frequency corresponding…

Q: Find median of data Class       5-9,10-14,15-19,20-24,25-29 Frequncy   4         6        8…

A:

Q: Find the mean of the following data * ,1,0,1,2,3,4- ,2- ,3-

A:

Q: Make up three data sets with 5 numbers each that have: (a) the same mean but different standard…

A: Make up three data sets with 5 numbers each that have:  (a) the same mean but different standard…

Q: If there were NO drivers who drove 80 or 85 mph would the mean stay the same, be lower,, or higher?

A: From the given information we find the probability.

Q: Find the mean of the data set: 14, 19, 13, 22, 7

A: Given data is : 14, 19, 13, 22, 7 Number of terms is n=5 To find the mean.

Q: If the mean is 25 for the data: 20. 30, 15. /24. y.8 find the median O 20 O 53 O 24 O 22

A: We have to find corrcet answer..

Q: What is the mode of the data: 21, 38, 12, 19, 38, 30, 19, 38, 12, 22, 31, 12, 38, 18, 27, 38, 12. 39…

A: Use the definition of mode.  The mode of a data set is the number that occurs most frequently in the…

Q: A study showed that the cost of buying a basket of 40 slipper items was 6500 in Laguna, 4,300 in…

A: Given: Cost of buying a basket of 40 slipper item in Laguna =6500 Bataan=4300 Mandaluyong=5700…

Q: The test scores for five students were 59, 60, 63, 76, and 87. How many points greater than the…

A: The mean is the average of all the values, or it is the sum of all the values divided by the number…

Q: What is the mean of the data: 4,11,9,10,4

A: We have to find out given mean..

Q: If the mean is 22 for the data: 20, 10, 12, 24, 8, y find the median 12 20 16 58

A: Given the data 20, 10, 12, 24, 8, y with mean 22.

Q: Find the mean, median, mode and range of this data set: 19, 18, 21, 16, 15, 17, 20, 18.

A: Solution

Q: The mean and median of a data set are always equal. O True O False

A: The mean and median are not always equal because it depends on the dat set.

Q: find out mean and median for given data' 45,14,45,12,13,18,9,8,1,7,,4,5

A:

Q: Raymond wants to estimate the percentage of parents that use cloth diapers. He asks a randomly…

A: According to the provided information, The data set will represent the collection of response…

Q: For which of the following sets of data should a stacked bar chart be used? The average height of…

A: Recall the following. A stacked bar chart is a graph that is used to break down and compare parts of…

Q: The following is data for the first and second Quiz scores for 8 students in a class.

A: Given the data for the scores of first and second score for 8 students. The excel steps to obtain…

Q: If a data set has 15 mean standard daviation 2 , percentage observation lie between 13 and 17

A: From the given information, Consider, X be the number of observation that has mean of 15 and…

Q: A custodian wishes to compare two competing floor waxes to decide which one is best. He believes…

A: Let μ1 denotes the population mean of WaxWin, and μ2 denotes the population mean of WaxCo. The claim…

Q: If the mean is 25 for the data: 20, 30, 15, 24, y, 8 find the median

A: Given that the mean is= 25 So,  (20+30+15+24+y+8)/6 = 25 or, 97+y=150 or, y=53

Q: Find the mean and median of the data.  8 1/2,6 5/8,3 1/8,5 3/4,6 5/8,5 1/4,10 5/8,4 1/2

A:

Q: If a data set has an even number of observations, the median

A: We have given that  If a data set has an even number of observations

Q: find mean for given data 12,15,14,6,9,7,5,3,4,15,25,35,6,45,75,35,20,35

A:

Q: Given the data: 1, 4, 3, 5, 4, Its mean value is

A: Given data(x); (n=5) 1, 4, 3, 5, 4

Q: If the median of a data set is 760, the upper quartile is 950, and the lower quartile is 650, what…

A: Given: Median = Q2 = 760, Upper quartile = Q3 = 950, Lower quartile = Q1 = 650.

Q: Which is the median of the data set {1, 4, 4, 4, 5, 8, 8, 10, 11, 11}? A 4 C C 6.6 В 6.5 D 7

A:

Q: Find the mean for the following group of data items.   5, 6, 2, 8, 1, 3, 4, 8

A: The random variable X follows normal distribution. We have to find the mean of the data.

Q: Calculate the mean and median of the following data: -19, – 10, - 4, 2, 3 Mean = Median = Is this…

A:

Q: The median of a sample with data values of 8,19,12,17,16 is?

A:

Q: What is the mean of the data set comprising the numbers 7, 8, 2, 5 and 8?

A: Given data set,7,8,2,5,8 Mean=?

Q: Find the mean, median, mode and range of the following data set. 1.9, 2.8, 1.2, 3.8, 3.2, 3.8, 4.3,…

A: Introduction: The first metric is the mean, which stands for average. To find the mean, add all of…

Q: For the given data. Find 24, 26, 23, 25, 27

A:

Q: Calculate mean of the data set: 4, 5, 0, 10, 8, and 3?

A: Number of samples (n) = 6 Plug in all the values in the formula, we get Therefore,

Q: The owner of a small company employs 6 people. As part of their personnel file, she asked each one…

A:

Q: The mode of the following data is: 32,12, 23, 34, 43, 21, 32,12, 23, 32

A: Given data, 32,12,23,34,43,21,32,12,23,32 Mode=?

Inverse Normal Distribution

The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.

Mean, Median, Mode

It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.

Z-Scores

A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.