You need to determine the number of ways in which 30 competitors from 50 can qualify. First, you have to realize that the order is irrelevant, that is: it is the same competitor_1, competitor _2, competitor _3 than competitor_3, competitor_2, competitor_1, or any combination of those three competitors. So, the …

Read More »## A study of sleep patterns randomly selected participants in the study to sleep in either a dark room or a room with light. Which element of experiment design is known to be a part of this study? A. blinding B. replication C. randomization

A study of sleep patterns randomly selected participants in the study to sleep in either a dark room or a room with light. Which element of experiment design is known to be a part of this study? A. blinding B. replication C. randomization

Read More »## There are 50 competitors in the men’s ski jumping. 30 move on to the qualifying round. How many different ways can the qualifying round be selected?

There are 50 competitors in the men’s ski jumping. 30 move on to the qualifying round. How many different ways can the qualifying round be selected?

Read More »## The probability that a randomly selected 55?-year-old male garter snakegarter snake will live to be 66 years old is 0.932080.93208. ?(a) what is the probability that two randomly selected 55?-year-old male garter snakegarter snakes will live to be 66 years? old

[Incomplete question. I found a table in other source – see attachment] I made a graph and it looks like a line (see attachment). If the proportion is exactly linear, you have to use this kind of equations: y=mx+b where: y are the sales x is the number of months …

Read More »## The probabilities of the orphaned pets in six cities’ animal shelters being different types of animals are given in the table. If a randomly selected orphaned pet in a St. Louis animal shelter is a dog, what is the probability that it is a mastiff? City Cat Dog−Lhasa Apso Dog−Mastiff Dog−Chihuahua Dog−Collie Austin 24.5% 2.76% 2.86% 3.44% 2.65% Baltimore 19.9% 3.37% 3.22% 3.31% 2.85% Charlotte 33.7% 3.25% 3.17% 2.89% 3.33% St. Louis 43.8% 2.65% 2.46% 3.67% 2.91% Salt Lake City 28.9% 2.85% 2.78% 2.96% 2.46% Orlando 37.6% 3.33% 3.41% 3.45% 2.78% Total 22.9% 2.91% 2.68% 3.09% 2.58% 15.30% 18.15% 21.04% 21.84%

Answer: Option: B is the correct answer. The window size that display all the points are: 0 ≤x ≤ 20 ; 0 ≤ y ≤ 60 Step-by-step explanation: We are given a table of values as: x …

Read More »## This problem involves empirical probability. The table shows the breakdown of 97 thousand single parents on active duty in the U.S. military in a certain year. All numbers are in thousands and rounded to the nearest thousand. Use the data in the table to find the probability that a randomly selected single parent in the U.S. military is in the Army.

Answer: The length is feet. Step-by-step explanation: we know that the area of the rectangle is equal to where x is the length side of rectangle y is the width side of rectangle In this problem we have so —-> equation A ——> equation B substitute equation B in equation …

Read More »## A survey found that 3 out of 100 randomly selected people have red hair. On the basis of this survey, how many people in a group of 12,000 people are likely to have red hair?

Answer: 100 printers of Type A Step-by-step explanation: Let x be the no. of printers of type A Let y be the no. of printers of type B You expect to sell at least 100 laser printers this month Equation becomes : —1 Cost of 1 printer of Type …

Read More »## A board game has 25 cards each card is printed with a number from 1 through 25 Sameer shuffled the cards and then selected one card what is the probability that Sameer selected a cart with a number less than 4 or a multiple of 9

Hey there! For this problem, consider how many cards there are that fit the two descriptions you’ve been given, based on the fact that the numbers only go up to 25: number less than 4 (not including 4): 1, 2, 3multiple of 9: 9, 18 That’s 5 cards total. That …

Read More »## Assume that the following events are independent: • probability that a randomly selected person has red hair is 0.14 • probability that a randomly selected person has red hair and a female is 0.06 What is the probability that a randomly selected person is a female, given that the person selected has red hair? (round to hundredths)

Answer with explanation: When you roll a dice, once , having number from 1 to 6, probability of obtaining each number When, you roll a dice 12 times, Probability of …

Read More »## A bag has 9 red marbles and 6 brown marbles. Half of the brown marbles are made of plastic. A marble is selected at random from the bag. What is the probability that it is a brown, plastic marble?

Answer with explanation: When you roll a dice, once , having number from 1 to 6, probability of obtaining each number When, you roll a dice 12 times, Probability of …

Read More »## Which best describes bias, if any, from the sample surveyed? survey: favorite vacation locations sample: randomly selected visitors to a national park A. Since the sample is randomly selected, there is unlikely to be any bias. B. Since the people surveyed are visiting a national park, they may be biased against vacations close to home. C. Since the people surveyed are visiting a national park, they may be biased towards national parks. D. Since a large number of people visit national parks, the sample should be large enough to eliminate any bias.

You are giving five radii (1, 1.5, 2, 2.5 and 3 feet) but only two colors, so I do not know which radii are for colors blue and yellow. I will explain the procedure in detail, and so you can apply it knowing the radii of each color. The probability …

Read More »## A group consists of seven men and seven women. Six people are selected to attend a conference. In how many ways can six people be slected for this group of fourteen

Answer: The correct statement are: There are four ways to choose the committee. There are three ways to form the committee if person D must be on it. If persons B and C must be on the committee, there are two ways to form the committee. Step-by-step explanation: It is …

Read More »## A number is randomly selected from {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}. A is represented by the event that the number picked is greater than 7. What is the probability of the complement of event A? 310 25 35 710

Hello there! 🙂 Answer: 1. B. 8. and x=8 *The answer must have a positive sign.* 2. D. Infinitely many. 3. D. -1 and y=-1 *The answer must have a negative sign.* 4. C. He didn’t add 13 to 26. 5. B. 4 and y=4 *The answer must have a …

Read More »## A _____ was often selected by the peasants and acted as a mediator between the peasants and higher officials, like the lord. reeve serf bailiff steward

A _____ was often selected by the peasants and acted as a mediator between the peasants and higher officials, like the lord. reeve serf bailiff steward

Read More »## Jim tree wants to analyze his shipment of trees based on height. he knows the height of the trees is normally distributed so he can use the standard normal distribution. he measures the height of 100 randomly selected in his shipment. he finds the mean is 65 inches and the standard deviation is 10 inches. what percentage of the trees will be between 55 inches and 75 inches? 60% or 34%

Jim tree wants to analyze his shipment of trees based on height. he knows the height of the trees is normally distributed so he can use the standard normal distribution. he measures the height of 100 randomly selected in his shipment. he finds the mean is 65 inches and the …

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