Ten kids line up in a random order. There are three boys and seven girls in the group. Let X be a random variable denoting the number of boys in the front half of the line. Give the pdf of X:

Q: A dataset of a class contains a variable that shows the school year of a student: freshman,…

A: Step 1: Make a frequency distribution table for each class of the variable as below: Variable…

Q: The average fruit fly will lay 400 eggs into rotting fruit. A biologist wants to see if the average…

A: Note- As per our policy we can answer only the first 3 sub-parts of a question. If you want…

Q: Create a set of data that is represented by the box plot below.

A: The above box-plot is drawn such that the first quartile and the Median values are equal

Q: Marcus rolls 2 number cubes, each numbered from 1 to 6. He rolled an even sum 16 times and an odd…

A: Given that  The Even sum is 16 times The Odd sum is 10 times  The relative frequency is the ratio of…

Q: In a survey of 100 randomly selected dentists, 28 dentists recommended Pearly brand over the other 5…

A: The random variable X is the dentists recommended Pearly brand toothpaste The total sample size is…

Q: there are 347 people that take a survey and assume that 112 of them are women. what percentage of…

A: The percentage of females in the survey is calculated below:

Q: A hospital emergency room accepts an average of about 47 bone fracture patients per week. Let the…

A: Given,The average no.of bone fracture patients per week is 47 .

Q: fly will lay 402 éggs into rotting fruit. A biologist wants to see if the average will change for…

A: Given sample data is: 406, 432, 401, 410, 410, 406, 419, 412, 388, 409, 427, 405, 391, 389. Sample…

Q: Determine what is asked through Microsoft Excel. A food delivery man wants to estimate the amount of…

A: Correlation: correlation value is r=0.854.

Q: The average weight of a lion is 410 pounds. A mammalogist wants to see if the average will be…

A:

Q: The average fruit fly will lay 395 eggs into rotting fruit. A biologist wants to see if the average…

A: a) Here, the population standard deviation is unknown but the parent population from which the…

Q: Let X denote the number of siblings of a randomly selected student. Explain the difference between…

A: The random variable X represents the number of siblings of a randomly selected…

Q: Q1 for data set:  41, 49, 55, 82, 84, 85, 93, 103, 113, 121, 126, 127, 136, 136, 155, 166, 169,…

A: The first or lower quartile (Q1) is a value below which 25% of the observations lies and above which…

Q: Find grade of 25 student in math class are  AAABBBBBBBBCCCCCCCCCDDFFF Make frequency table ,…

A: Given: Number of students = 25 The grades are A, A, A, B, B, B, B, B, B, B, B, C, C, C, C, C, C, C,…

Q: Find the sample mean of the data. Be sure to include screenshot of Excel of your answers and…

A: 30 30 30 30 40 60 40 15 50 150 40 30 30 30 40 30 40 30 30 30…

Q: Sdulions © ty ze?u

A:

Q: A group of 50 teachers and school administrators attended a convention. If any two persons are…

A: Solution: Let x be the number of teachers.

Q: Use a stem and leaf to display the data. 40 40 44 48 35 40 36 53 32 36 40 35 30 21 40 36 40 36 40 33…

A: The given data is : 40 40 44 48 35 40 36 53 32 36 40 35 30 21 40 36 40 36 40 33 40 32 38 29

Q: Find mean of 2 and 10

A:

Q: Find the variance of X X: 73,51,73,182,45,90,111

A:

Q: The median of (1,9,8,4) is?

A: To find the median of 1, 9, 8, 4

Q: Suppose a certain virus (sorry!) affects 0.3% of the population. A test used to detect the virus is…

A: 0.3% of 100000 population have virus.  0.3*100000/100= 300  people have virus.  88% have virus and…

Q: randomly chosen studer nity college in California. Construct a stem-and-leaf display for the given…

A: Stem and leaf plot is  a graphical representation of data and is used for quantitative variables.…

Q: Each of three friends flips a coin 36 times. Angel records “tails” 20 times. Michael records “tails”…

A: Given Data: Name Number of tails Number of trials Angel 20 36 Michael 17 36 Fernanda 23 36

Q: Find the mean and variance of Set S (-8, 4, 0, 10, 16, 20)

A:

Q: Draw a histogram for the data. Use a class width of 15. Be sure to include the screenshot of Excel…

A: Given that class width is 15. Arrange the data in ascending order since the lowest value is 15.…

Q: Calculate the following for your Group's dart position data: a) Mean b) Standard Deviation c)…

A: Given that: Column # # of hits 18 0 19 1 20 4 21 2 22 4 23 9 24 23 25 14 26 15…

Q: Determine the original set of data in row 2. The stem represents the tens digit and the leaf…

A:

Q: Describe about Variability between Groups.

A: In ANOVA, the total variability can be split into various sum of squares (variations). They are sum…

Q: Let X represent the difference between the number of heads and the number of tails when a coin is…

A: Given that  The Coin is tossed 6 times  The number of trials (n)=6 Let X denotes the difference…

Q: The average fruit fly will lay 424 eggs into rotting fruit. A biologist wants to see if the average…

A:

Q: A card is randomly drawn from a deck of 52 card with replacement 456 times. Find the mean of the…

A: Total number of cards = 52 Number of hearts = 13 Let p = P(heart)= 13/52 = 1/4 = 0.25

Q: ickets taken by Junaid khan in a match, is ________ variable.

A: A discrete random variable is a variable that takes only a finite number of distinct values. A…

Q: A card is randomly drawn frim a deck of 52 card with replacement 456 times. Find the mean of the…

A: Number of hearts = 13 p=P(getting heart) = 13/52 = 1/4

Q: Find the mean of this set of numbers: 19, 19, 9, 11, 13, 20, 19, 10

A: To find Mean of the given set of numbers 19,19,9,11,13,20,19,10

Q: Calculate the variance for the data set. Show all of your steps. {4, 16, 21, 32, 11, 12}

A:

Topological Sort

Topological sort is a sorting technique that sets up a hierarchy in a process. In this technique, when a directed network has nodes connected by arrows, the root node is placed before the successor node.