On a test, Tarina missed 8 out of 52 questions. What is the ratio of correct to incorrect answers on Tarina's test?

Q: Use a two-proportion Z-test to determine if the proportion of people who responded positively to the…

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Q: What proportion of cars are driving between 75 and 85 miles per hour?

A: We have given that

Q: Because of practical considerations you ultimately decide to survey 100 people and find that 75 of…

A: Solution-: Number of people in survey =100 Number of people prefer to work at home = 75 We want to…

Q: In a class with 25 student there are 6 student very talentet in the subject of art. What percentage…

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Q: When the Standard Score = -1, what is the percentile of the raw score? %3D O 2nd 14th O 16th 34th…

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

Q: Mrs. Cruz is a Math teacher; she gives a 60 item test for remedial class. The scores of 20 students…

A: Deciles divide the ordered data into 10 equal parts.   There are 20 values in the data. So, n = 20.…

Q: 104 concert-goers at the Glass House in Pomona, California were asked if they know how to play an…

A: Here it is given that- Number of concert goers  = 104 Number of concert goers who can play an…

Q: 00 subjects were studied and 120 of them expressed a preference for brand x, what percentage…

A: The 200 subjects were studied; n=200 120 of them expressed a preference for brand x; x=120

Q: A consumer group surveyed 146 airplane travelers after a flight and found that 132 of them would fly…

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Q: Make a table showing the approximate values and the actual value, together with the percentage error

A: xy'=12x-3y..................1Let x=e2z=logxdzdx=1xdydx=dydz·dzdx ⇒dydz·1xxdydx=dydzNow equation (1)…

Q: The average (mean) score on an exam was 76.375 in a class consisting of 21 Administration students…

A: From the provided information, The average score on an exam was 76.375 consisting 21 Administration…

Q: A survey of 150 people revealed that 115 people like ketchup on their hot dogs, 85 people like…

A: Concept of General Addition Rule: For any two events A and B the General Addition Rule state that:

Q: How is the frequency of the segmentation set?

A: Segmentation is an important part of statistics. The Heterogeneous data is divided into a…

Q: According to College Board the scores on the AP History exam are normally distributed with N(72,…

A: It is given that the scores on the AP History exam are normally distributed with N(72, 7.5).

Q: The state education commission wants to estimate the fraction of tenth grade students that have…

A: The sample size is The number of students reading above the eighth-grade level is . The objective is…

Q: Homer Simpson is interested in studying the ratio of the various colors of sprinkles on Lard Lad…

A: Introduction: Here, it is not mentioned whether the three donuts of each variety are chosen randomly…

Q: Which region or regions showed difference in the average money spent during visit by region.

A: The Tukey HSD results show that there is a significant difference in the average money spent during…

Q: What are the steps for Finding Proportions for One Score?

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Q: If a coin is flipped 150 times and the number of Hs is 25. Compute the proportion of Hs. Round to…

A: We have given that,  Favorable cases (X) = 25 and sample size (n) = 150 Then,  We will find the…

Q: A telecommunications company conducted a survey about cell phone companies. Of 1800 randomly and…

A: given  x = 1275 preferred AT&T to Sprint n =Of 1800 randomly and independently selected people…

Q: In a survey of 1150 adult males, 805 said they use the Internet. In a survey of 1050 females, 746…

A: There are two dependent variables which are males and females. The independent variable is using of…

Q: scores

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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: A test question is good if it discriminates between prepared and unprepared students. The first…

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Q: among the 1018 respondents, 428 said that pesticides are "not at all harmful."  What percentage of…

A: Total number of respondents = 1018Total number of respondents said that pesticides are "not at all…

Q: There are 16 flowers in a vase. Seven of the flowers are yellow, whereas 5 are red. What is the…

A: We have to check

Q: What percentage of the blocks are red?

A:

Q: The percentage of people who have white blood cell counts over 10,500 is

A: To determine the percentage of people who have white blood cell counts over 10,500, we need to know…

Q: Jovan asked 2000 people if they are afraid of spiders. 274 people said yes. What percent of the…

A: The given data is: Total number of people=2000 People afraid from spider is 274

Q: The Bangor Humane Society tracks cat adoptions closely. They sample 54 people who looked at cats…

A: Sample proportion = x/n Here x = 36 and n = 54

Q: A survey of 500 citizens of a large country revealed that 70 of them believe the government's…

A: Solution : Given that : A survey of 500 citizens of a large country revealed that 70 of them believe…

Q: A survey of 1179 adults nationwide  asked what irks you most about The actions of other Motorist"The…

A: Given: Number of People surveyed=1179 People voted for tailgater=796 To find: Percentage(x).

Q: what proportion of 112 is 21?

A: It is needed to find the proportion of 112 that is equal to 21.

Q: a rate compares two numbers from different categories true or false

A: A rate is a ratio that compares two different quantities that have different units of measure. A…

Q: In a sample of 169 students, 16 said they have donated blood. What percent of the students have…

A: Given that, In a sample of 169 students, 16 said they have donated blood.

Q: estimate the proportion of people who were caught after being on the 10 most wanted list enter your…

A: Given : Sample Size, n = 334 Number of successes, x = 86

Q: Prof. Leen wants to estimate the more than 92% percent of adults living in a large city have cell…

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Q: Explain the purpose of a measure of variation.

A: