about 53.6% of the students in the class got an A. If 15 students got an A .Estimate the number of students in the class

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A: Addition rule of probability:Addition rule of probability indicates the happening either of the…

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A: Percentage can be calculated, suppose for the people who got C as  (No. Of people who obtained C ÷…

Q: a. The proportion of Pennsylvanians with a high school diploma is equal to 0.83. b. The proportion…

A:

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A: a) Null Hypothesis is H0: µ = 3.26 Alternative hypothesis is Ha: µ < 3.26 (Claim)

Q: 5.) Ms. Cyrus has 64 songs on her phone. Two- fifths of the songs are R&B songs. The rest are jazz.…

A:

Q: 2. Roger has 132,943 blue balls and 243,214 green balls. If he wants the least accurate estimate for…

A:

Q: 16. How many more girls selected chocolate than boys? Favorite Flavor

A: Given that  Histogram of data showing number of girls and boys selecting chocolate and vanilla. From…

Q: Out of 45 students, 29 go on a field trip. Which best represents the percent of the students who do…

A:

Q: In a survey of 142 pet owners, 77 said they own a dog, and 72 said they own a cat. 38 said they own…

A: If A and B be two subset of a universal set U . Then if n(A) denote number of element in A then we…

Q: 11) According to-the given data, how many of the passible sandwich combinations include either roast…

A: There are 5 kinds of beef and 4 types of cheese. If roast beef or salami is selected then there are…

Q: Ted identified the top five receivers available in the game by the number of receiving yards. Player…

A:

Q: What percentage of the shoppers have an email account

A: In the question it is asked to calculate the percentage of shoppers that have an email account.

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A: Step 1: Arrange the observations in ascending or descending order of magnitude. Step 2: Determine…

Q: Twelve people ordered calculators. The least expensive was $5.95 and the most expensive was $12.95.…

A: The least expensive calculator was of $5.95 The most expensive calculator was of $12.95. Half of the…

Q: The state transportation commission counted cars traveling east and west across a toll bridge. The…

A:

Q: Participant Before Treatment After Treatment A 4 3 14 23 8 6

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Approximately how many of the families in the survey have less than four children? O 130 O 140 260…

A: Given graph is

Q: s how many points n touchdowns are worth?

A:

Q: How many selected cities have values under 11,508,260? (Compare your answer to the table to be sure…

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Q: What percentage of books read 76 books out of 80 total books

A: Solution:

Q: When 500 junior college students were surveyed,120 said that they have previously owned a…

A: When 500 junior college students were surveyed,120 said that they have previously owned a…

Q: Determine the net price of an article listed at $12,050 less 20%, 16%, 9/3% Select one: a. $5,462.67…

A: Given:- An article listed at $12,050 less 20%,16%,9¹/3%.  To find:- Net price of an article

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A: A sample is a sub part of population and it is selected randomly such that it is representative of…

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

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Q: The table below shows how many employees owned 0, 1, 2, or 3 cars in a company made up of 15…

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Q: What percentage of students guessed between 41 and 44

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Q: What proportion of Canadians spend between 8 and 16 hours watching Netflix per month? What…

A: Solution

Q: If 2% of the components produced by a machine are defective, what is the average number of defective…

A: Given that,2% of the components produced by a machine are defective.Sample size, n = 150

Q: What proportion of students either own an automobile or lives in a dor

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Q: 12. Find the median. 5, 8, 9, 2

A: Here we need to find the median.

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Q: 5) At Bill's community college, 41.7% of students are Caucasian and 2.7% of students are Caucasian…

A: Given that 41.7% of students are Caucasian and 2.7% of the students are Caucasian math majors.…

Q: In a survey of 96 pet owners, 68 said they own a dog, and 11 said they own a cat. 6 said they own…

A:

Q: Out of 1000 people surveyed, 850 said they like chocolate.  What proportion of people surveyed said…

A: Given: The total number of people surveyed is 1000 850 people said they like chocolate We have to…

Q: Scott surveyed 40 friends on Facebook and asked them where they were born and where they went to…

A:

Q: If the minimum temperatures for the 6 Asian countries are recorded as 3,31.1,27.4, 24.1, 19.4, 14.3,…

A: GivenMinimum temperatures for the 6 asian countries is3,31.1,27.4,24.1,19.4,14.3

Q: Find mZE. E 5.1 7.8 7

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A: Measure of central tendency measures the central or average value of a dataset. Mean, median and…

Q: find 5th deciels for given data  12,15,42,3,26,36,6,56,32,25,29,67,32,30

A:

Q: b. In a Pew Research Center poll on driving, 58% of the 1182 respondents said that they like to…

A: Step 1. (b) Total number of respondents is study =1182.

Q: 2. Find the median. 4,4, 1, 9, 7, 5

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A: In this question, we have to find the percent decrease in rail link.

Q: 7 When adults were surveyed about conserving and recycling, 10 3 of them said they conserve water…

A:

Q: What was the average price for a ticket to the Red Sox game in 2018? Team Ticket Other Drink Soft…

A: We have to find the average price for a ticket to the Red Sox game in 2018.

Q: C. According to the relative values of column entries, how should the participants be ranked?

A: Given According to the relative values of column entries to find how should the participants ranked.…

Q: 42 If a hockey team's win: loss: tie ratio is 5: 2: 3 after their last 30 games, how many games have…

A: If a hockey team's win:loss:tie ratio is 5:2:3 after their last 30 games, how many games have they…

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.