The mean of four numbers is 8. If one of the numbers is removed, the mean becomes 9. What is the value of the number that was removed?

Q: A set of N = 10 scores has a mean of µ = 50.  If 20 points are added to one of the scores, what is…

A: It is given that the number of scores in the set is 10 and the population mean is 50.

Q: the average(arithmetic mean) of g and 100 is 75, what is the value

A: It is given that, the average of g and 100 is 75. we have to find the value of g+100=?

Q: In​ Lindsay's class, there were three students who scored 80 on a test and six students who scored…

A:

Q: For a raw data, the arithmetic mean is 24 and sum of the observations (values) is 840. One of the…

A: Here given that  Sum of observation is 840Mean is 24

Q: An absent-minded professor misplaced the business math test scores of his five students. However, he…

A:

Q: The mean of 11 numbers is 48. Removing one of the numbers causes the mean to decreaseto 43. . What…

A: Measures of Central Tendency: A measure of central tendency represents the central value or typical…

Q: What percent of students had an IQ of at least 120​?

A: From the given histogram, the frequency table can be observed as shown below:

Q: Consider that a data set of 10 data points has a mean of 5. If every data point was doubled in the…

A: Given that No.of data points in a data set=10 Mean of 10 data points=5 Every data point was doubled…

Q: The mean of 14 numbers is 47.  Removing one of the numbers causes the mean to decrease to 43. What…

A: Given that Number of observations N = 14 Mean = 47

Q: find the mean for the number of correct answers

A: A multiple choice test with 17 questions, each question has four possible answers, one of which is…

Q: the average score of 10 students is 85. what will be the mean if another student will take the test…

A: From the provided information, Average score of 10 students = 85

Q: Find the mean of 7, 7, 2, 3, 4, 1 graphically. What is the sum of the numbers? try

A: our objective is to find the mean

Q: If the mean of the values 50, x, 55, 35, 15, 25 is 40, then the value of x must be......

A: Given : The mean of the values : 50, x, 55, 35, 15, 25 is 40. We have to find the value of x.

Q: The mean of the following data is 70. Find x:  47,56,x,79,86

A:

Q: When taking a 34 question multiple choice test, where each question has five possible answers, it…

A: Given information- No. of question on multiple choice test, n = 34 Probability of correct answer, p…

Q: What is the mean of 210, 160 and 200?

A: mean of n numbers  x1 , x2 , ... , xn is given as x1 + x2 + . . . + xnn

Q: The median of (1,9,8,4) is?

A: To find the median of 1, 9, 8, 4

Q: Yesterday Al recorded 5 data values, and the mean of those values was 90. Today he realized the data…

A: Given dataMean of 5 data values = 90Data value 80 was actually 50Mean is given by

Q: What is the mean of 1,-3,4,5,7?

A: Given data, 1,-3,4,5,7   Mean=?

Q: If the aggreat is 30 and the mean is 10. How many sets of numbers are used

A: According to the provided information, The aggregate is 30 and the mean is 10

Q: A data set has five values. The smallest value is 13. The median is 18. The mode is 27. What is the…

A: Solution

Q: For a raw data, the arithmetic mean is 56 and sum of the observations is 840. One of the…

A: Given Information: Arithmetic mean of raw data is 56. Sum of observations is 840. One of the…

Q: The mean of 200 items was 50. Later on it was found that two items were wrongly taken as 92 and 8…

A:

Q: on a multiple choice test with 20 questions, each question has 4 possible answers, one of which is…

A: We have to find mean  for students who guess at all  correct answers..

Q: Brad and Lena are recording their classmates' eye color for a statistics assignment. In Brad's…

A: Brad's class: green-eyed students = 3 total students = 25 ratio(A) = 325     Lena's class:…

Q: If arithmetic mean and geometric mean of two values are 10 and 8 respectively, find values.

A:

Q: In a few sentences, describe what the sampling distribution of the mean represents in your own words

A: The sampling distribution of the sample mean can be defined as the probability distribution of the…

Q: Find the mean of a student test scores if he earned 5, 93, 85, 90 and 91 points on five tests

A:

Q: What number was removed?

A: This is a basic application of average . Average forms a firm backbone of high school mathematics .

Q: the mean weight of five complete computer stations is 167.2 pounds. The weighs of four of the…

A: If we have 5 observations x1,x2,x3,x4,x5, then the mean is given by M=x1+x2+x3+x4+x55

Q: IF the mean of the values 50, X, 55, 35, 15, 25 is 40, then the value of x must be........

A: From the provided information, The mean of the data set is 40. The data values are 50, x, 55, 35,…

Q: what 2 numbers have a mean of 10 and a range of 6

A: Given that, the mean of two numbers is 10 and the range is 6. Now, for two numbers,  mean = (sum of…

Q: The mean of five numbers is 5. If one of the five numbers is removed, the mean becomes 6. What is…

A: The mean of five numbers is 5.So total of those 5 numbers = 5*5= 25

Q: If the mean of five values is 8.8 and four of the values are 6, 7, 6 and 12, find the fifth value.

A: Given: The mean of five values is 8.8  The four values are 6, 7, 6 and 12 Consider, the fifth value…

Q: If the mean of 14, P, 6, 2, 11 ,12, 5, 5,11, 7 is 10, find the value of P a) 14 b) 5 c) 27 d) 11

A: Given  mean = 10 and data = {14,P,6,2,11,12,5,5,11,7} we have to find the value of P.

Q: For a raw data, the arithmetic mean is 48 and sum of the observations (values) is 240. One of the…

A: GivenArthmetic mean =48sum of observations = 240

Q: If the mean of five values is 9.8 and four of the values are 13, 6, 9, and 12, find the fifth value.…

A: The formula of the mean is given by: mean = sum of observationsnumber of observations mean = 9.8

Q: he mean, the median, the mode, and the midrange.

A: Let the given observations are  43,48, 56, 63, 74, 78, 87, 94, 98, 104, 118, 131

Q: history class has 75 members.  If there is a 12% absentee rate per class meeting , find the mean of…

A: Mean  absence = number of students in the class multiplied by the rate of absence of one student.…

Q: The low temperatures in the Town of Rigby for 5 conservative days were -12, -17,-11,-12,-18 what was…

A:

Q: The mean of 10 numbers is 8. If an eleventh number is now included in the results, the mean becomes…

A: Given,The mean of 10 numbers=8Let the 11th number be X.

Q: Give five different numbers whose mean is 11 and range is 14.

A: Here use basic formula of mean and range

Q: Suppose you have information about average heights of a random sample of airplane passengers. The…

A: Form the given information, The mode is 70 inches, the median is 68 inches, and the mean is 71…

Q: The mean of 10 numbers is 49. Removing one of the numbers causes the mean to decrease to 45. What…

A:

Q: What is the mean of the numbers 0.1, 0.11, and 0.111?

A: 0.1 + 0.11 + 0.111 = 0.321

Q: A student has two test scores. The difference between the scores is 8 and the mean, or average, of…

A: Given: A student has two test scores. The difference between the scores is 8 and mean, or average,…

Q: Juanita read an average (mean) of 5 books a day for 4 days. How many books will Juanita need to read…

A:

Q: What is the value of ΣX for the scores 2, 5, 3?

A: Given data2,5, 3ΣX = 2+5+3 = 10

Q: lues in data is 20 and the sample mean is 4 then number of observation in the data

A: The given information is: Sum of the values = 20 Sample mean = 4 The mean formula is: Mean = Sum of…

Q: The mean of 12,22,32,42,52,62,72 is ?

A: