look for the mean, Only 2 decimal places

Q: Suppose the degree of student in exams was (70,57,60,75,80,58,90), calculated mean for grouped data…

A: See the attachment

Q: Find the z-score that cuts off 70% in the body on the right.

A:

Q: What is the p-value rounded to 3 decimal places?

A: According to the given information in this question, we need to rest two parts

Q: The arithmetic mean between two numbers is 3.4 and their geometric mean is 0.4(42)^ 0.5. Find their…

A: Let us assume the two numbers to be x and y. We are given that the arithmetic mean of two numbers is…

Q: What is the difference between the arithmetic mean and a weighted mean?

A: To explain the difference between arithmatic mean and weighted mean.

Q: In population of high school students algebra scores, the mean is 64 and the standard is 6. Find the…

A: Here mean is 64 and standard deviation is 6.

Q: A carpenter buys GHC 500 worth of nails at GHC 50 per pound and GHC 50 worth of nails at GHC 10 per…

A: Harmonic mean: it is defined as the reciprocal of the mean of reciprocals. HM=n∑1X

Q: What proportion of z scores lie beteeen -2 and +2 in the height in inches data set? Round your…

A:

Q: the mean = 146, and s =  35 Question #3 A percentage of female students with scores between 41 and…

A: From the provided information, Mean (x̅) = 146 Standard deviation (s) = 35

Q: What is a standard abbreviation for the mean?

A: Mean is a measure of center in case of quantitative data.

Q: Briefly explain what is meant by the term “descriptive statistics”.

A: We have to describe descriptive statistics here

Q: Describe about MEAN SQUARES (M S) AND F RATIOS.

A: Solution : Mean Squares - Mean squares is simply an estimate of population variance that accounts…

Q: What's the median of 10.2,12.6,20.4, and 13.6 to 3 decimal places

A: It is an important part of statistics. It is widely used.

Q: . Explain what the mean is

A:

Q: What is the formula to find weighted mean.

A: Weighted Mean: A mean in which some values are more important than others.

Q: 5.

A: Given:

Q: A negative z-score indicates that the score or value is above the mean. True or False

A: Given: z-score

Q: Last weekend, police ticketed 18 men whose mean speed was 113 kilometres per hour (kph), and 32…

A: Given information: Number of men ticketed by police last weekend, n1=18 The mean speed of men was,…

Q: Find the z-score that cuts off 65% in the body on the left.

A:

Q: The Bookstall Inc. is a specialty bookstore conc ardcover books are $3.50. Of the 50 books so What…

A:

Q: John calculated r -.44 for a set of n 10 pairs of values that represent the number of absences from…

A: Given that r = -0.44 midterm exam score ( y )   number of absences from class (x)

Q: What is MEAN SQUARE: GENERAL EXPRESSION?

A: Introduction Statistics is a field which involves collection, arrangement and analysis of the data…

Q: Fine the mean number 12 31 45 67 78

A: Mean number is defined as the value calculated by dividing the sum of all the values by total number…

Q: True or False: The mean is the same thing as the average

A: Given that Mean is same thing as average

Q: The mean age of a group as 100 persons was found to be 32-02. Later it was discovered that age 57…

A:

Q: What proportion of z scores lie between -3 and +3 in the height in inches data set

A: We have to calculate P(-3 < Z < 3)

Q: What are the limitations of the mean

A: A.M is a ratio of sum of observations to the number of observations.

Q: A positive z-score indicates that the score or value is below the mean. True or False

A: We want to tell you above statement is true or false

Q: What if the mean is 61?

A: Let X be the final exam score in statistics.Here X is normally distributed with a mean of 61 and a…

Q: The mean of 200 items was 50. Later on it was dis- covered that two items were misread as 92 and 8…

A:

Q: If we add a constant (for example, d) to all data values, how will this affect the geometric mean?…

A: Consider that x1, x2, x3, x4, x5, …. xn, are the data values. Thus, the GM (geometric men) can be…

Q: what range of raw scores makes up the middle 40%

A: The middle 40% means, the scores lie between 30th and 70th percentile. From stand normal, z-score…

Q: What is p value ?

A: The​ P-value is the probability of observing difference in the sample statistic this high or higher…

Q: Suppose X ∼N (-4,1. Between what xx values does 99.72% of the data lie?

A: Given: X ∼N (-4,1 ) To find: Between what xx values does 99.72% of the data lie?

Q: find mean if n=2 and p=0.10

A: The concept of the binomial distribution is used by the researcher, if it is required to compute the…

Q: If we add a constant (say, d) for all data values, how this will affect the geometric mean ? Give…

A: Consider that x1, x2, x3, x4, x5, …. xn, are the data values. Thus, the GM (geometric men) can be…

Q: For a histogram with a long right tail, more than half of the area is to the left of the mean. O…

A: Graph of long right tail

Q: For the month of April, a checking account has a balance of $539 for 22 days, $2318 for 3 days, and…

A: To calculate the mean daily balance for April, we need to determine the total balance for the entire…

Q: Find the average of 1/2, 1/3 , and1/4

A:

Q: Three cars are driving on a racetrack. The mean speed of the three cars is 100 miles per hour. Car X…

A: The objective of this question is to find the speed of Car Z using the mean speed of the three cars.

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

A: