44 randomly selected students were asked how many siblings were in their family. Let X represent the number of pairs of siblings in the student's family. The results are as follows: # of Siblings 1 2 3 4 6 Frequency 11 7 3 7 Round all your answers to 4 decimal places where possible. The mean is: The median is: The sample standard deviation is:

101 people were interviewed and were asked about the number of bicycles that they had in their household. The results are shown in the table below: Number of Bicycles Frequency 15 1 30 20 3 15 15 6. What is the median of this set of data? Select one: O a. O b. 4 OC. 3 Od. 2. 45

A sample of nine tourists indicated how much they spent on accommodation per night (in dollars) at a popular holiday destination. The amounts they paid for accommodation were as follows: 313.6 151.6 598.5 222.7 293.9 272.6 198.5 382.0 188.7 What is the difference between the median and the mean of the sample (correct to 2 decimal places)? Use (median - mean) as the order of the difference. P   Note:- Do not provide handwritten solution. Maintain accuracy and quality in your answer. Take care of plagiarism. Answer completely. You will get up vote for sure.

Researchers wanted to know if living in schools protects minnows from predators. The researchers placed different numbers of minnows into separate aquaria. Then, the researchers counted how many times per minute predatory fish approached the schools. Calculate the sample means, ?¯,x¯, and sample standard deviations, ?,s, for the number of times per minute a predator approached each school size. Round ?¯x¯ to one decimal place. Round ?s to two decimal places.       Minnow school size Trial 3 5 10 15 20 1 0.9 0.7 0.4 0.4 0.1 2 0.8 0.8 0.5 0.5 0.1 3 0.7 0.9 0.6 0.3 0.2 4 1.1 0.6 0.8 0.2 0.3 5 1.0 1.0 0.7 0.6 0.3

A survey was given to 18 students. One question asked about the one-way distance the student had to travel to attend college. The results, in miles, are shown in the following table. Use the median procedure for finding quartiles to find the first, second, and third quartiles for the data. Distance Traveled to Attend College     30    36    8    12    38    72    4    24    26        26    6    40    50    26    76    14    12    32     Q1  =    Q2  =    Q3  =

For 100 randomly selected college students, the exam score frequency distribution was obtained. Class Limits Frequency 86 - 90 6 91 - 95 22 96 - 100 45 101 - 105 22 106 - 110 5 a. Find the mean, median, and mode. Mean:   Median:   Mode:

20 computer screens were randomly selected from a large collection of computer screens in a company’s warehouse. These 20 computer screens are referred to as the: test statistic. parameter. population. sample.

The governor of a state wanted to assess the public education system of the state. She instructed a group of researchers to create a test to assess the knowledge of every high school senior in the state. The researchers administered the tests and found that the average score was 74 points out of 100, with a standard deviation of 20 points. Complete parts (a) through (c) below. a. Identify the population and variable. Choose the correct population below. A. The population is the group of all high school seniors in the state. O B. The population is the group of every state's governor. O C. The population is the group of all high school teachers in the state. O D. The population is the group of all high school students in the state. Choose the correct variable below. O A. The variable is the number of high school seniors. O B. The variable is the test length. YC. The variable is the test score. O D. The variable is the number of high school students. b. For samples of size 225, find the…

Which data set would give the smallest standard deviation? Select one: a. {100, 150, 200, 250, 300} O b. {1, 5, 7, 150, 2} O c. {4, 20, 55, 100, 2} O d. (56, 20, 34, 102, 30}

u refers to the population mean while x refers to the sample mean O A. True O B. False ts ft or 2