8,958 Answered Questions for the topic statistics

Statistics

06/10/22

measurement scales
Mr. Haider conducted a survey to estimate the height of women living in Karachi. 60% reported their height 5 feet 3 inches tall, 20% reported 5 feet 5 inches and rest of the 20% reported 5 feet... more
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Statistics

06/10/22

Measurement scales
Mr. Umar showed titanic movie to BS-III semester students. Students rated the movie by using the number of stars i.e. *didn’t like movie at all, **slightly liked the movie, ***somewhat liked the... more
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Statistics

06/10/22

Measurement scales
Dr. Saima took two students from her BS class and asked them to observe the clock and gave example of difference in time using twelve hour and twenty four hour format. One of the students reported... more
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Statistics

06/10/22

What is the midrange of the following data set? 3, 9, 8, 10, 2, 10, 16, 16, 16
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Statistics

06/09/22

Test Study New Drug Probability

In a study, a new drug is found to be effective in 67% of those who took it. 14% of people in the study overall reported mild side effects (soreness, headache or nausea). Also, of the people for... more
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Statistics

06/09/22

Blood Test Probability

Suppose the following of a blood test: Positive 95% of the time when a patient does have the disease (true positive rate). Positive 10% of the time when the patient does not have the disease... more
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Statistics

06/09/22

Coin Probability

Part a)Suppose three coins are in a box: (1) A fair coin, (2) A coin weighted to come up heads 1/5 of the time (and tails 4/5 of the time), and (3) A two-headed coin.A coin is drawn at random,... more
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Statistics

06/09/22

Teacher Set Problem Probability

Suppose the professor gives a class a set of 15 problems, with the information that the test will consist of 7 of these. If a student has figured out how to do 12 of the problems, what is the... more
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Statistics

06/09/22

Card Deck Probability
Five cards are dealt from a regular deck of 52 cards. (Recall that a regular deck of 52 cards consists of 13 kinds/denominations, each having 4 suits: ♥, ♦, ♣ ♠.)Part a)What is the probability that... more
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Statistics

06/09/22

Elk Probability
Twenty elk live in a forest, and 7 were tagged and released. Some time later, 5 elk were randomly caught. Assume all 20 elk were equally likely to be caught. What is the probability that exactly 2... more
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Statistics

06/09/22

Coin Toss Probability
What is the probability that in 7 coin tosses we get exactly 5 heads and 2 tails? Do NOT round.
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Statistics Probability

06/09/22

Fair die probability
A fair, six-sided die is rolled 15 times. Each roll is independent. What is the probability of rolling a “three” more than 6 times?
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Statistics

06/08/22

Statistic Probability
A roaming band of adventurers purchases potions from three guilds: 55% from guild 𝐺1G1, 30% from guild 𝐺2G2, and 15% from 𝐺3G3. Suppose 12% of the potions from guild 𝐺1G1 are cursed, 25% of potions... more
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Statistics

06/08/22

Deck of Cards Probability
You pick 3 cards from a regular deck of 52 cards. Answer the following: What is the probability that all three are Kings? What is the probability they have all have different values (e.g. a 6, 8,... more
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Statistics

06/08/22

A candy manufacturer produces Halloween surprise bags by filling bags with 5 different surprises. How many different surprise bags can the company create if it stocks 14 different types of surprises?

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Statistics

06/08/22

a mean of 57 and a standard deviation of 3. Using the 68-95-99.7 rule, what is the approximate percentage of lightbulb replacement requests numbering between 57 and 66?
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Statistics

06/07/22

A newspaper conducted a statewide survey concerning a proposal to raise taxes in order to prevent budget cuts to education
A newspaper conducted a statewide survey concerning a proposal to raise taxes in order to prevent budget cuts to education. The newspaper took a random sample (assume it is an SRS) of 500... more
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Statistics

06/06/22

(STATISTICS) Test whether the variance of the task times of tasks 1 and 2 are different at a 0.05 significance level.
a)Test whether the variance of the task times of tasks 1 and 2 are different at a 0.05 significance level.b)) Test whether the task times of these three tasks are different at a 0.05 significance... more
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06/06/22

Which of the following situation is not a bivariate data?

Which of the following is not a bivariate data?A. Study a group of college students to find out their height and their weightB. Study a group of diabetic patients to find their weightsC. Study a... more
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Statistics Probability

06/06/22

Distribution probability
In a large city 1 person in 8 is left handed. Find the probability that in a random sample of 30 peoplea) exactly 6 will be left handed: Answerb) more than 6 will be left handed: AnswerEnter... more
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06/06/22

Which of the following is not a bivariate data??
Which of the following is not a bivariate data?A. Study a group of college students to find out their height and their weightB. Study a group of diabetic patients to find their weightsC. Study a... more
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Statistics Mathematics

06/05/22

A class of students gathered data concerning which canteen foods were most often thrown in garbage. As a result of these efforts, certain items were removed from the regular menu.
1. What do you think did the students do to gather the needed data?2. How did they know which foods were most often thrown in the garbage?3. If you were to do the same, how will you do it?
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Statistics Mathematics

06/05/22

A class of students gathered data concerning which canteen foods were most often thrown in garbage. As a result of these efforts, certain items were removed from the regular menu.
1. What do you think did the students do to gather the needed data?2. How did they know which foods were most often thrown in the garbage?3. If you were to do the same, how will you do it?
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Statistics

06/05/22

A class of students gathered data concerning which canteen foods were most often thrown in garbage. As a result of these efforts, certain items were removed from the regular menu.
1. What do you think did the students do to gather the needed data?2. How did they know which foods were most often thrown in the garbage?3. If you were to do the same, how will you do it?
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Expert Answers •1

06/04/22

Which of the following is not a bivariate data?
Which of the following is not a bivariate data?A. Study a group of college students to find out their height and their weightB. Study a group of diabetic patients to find their weightsC. Study a... more
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