The data in the figure below represents the number of stars earned by 140 performers in a talent competition. 35 30 25 20 15 10 5 0 1 2 3 4 5 Number of Stars How many performers earned exactly 2 stars? (be careful - compare the question wording to the scale on the graph) Percentage of Performers (N = 140)

Q: 700 800 900 1000 1100 1200 130 SAT Scores Use the graph above to find the following. Round to one…

A: The gives SAT score (X) follows a normal distribution with μ=1000, σ=100 because the middle value is…

Q: The data represent the time, in minutes, spent reading a political blog in a day. Construct a…

A: Given: Sample size n = 20 Number of class interval = 5   Formula Used: Class width  = RangeNumber…

Q: Refer to the data below to answer the questions that follow. The set of data that follow represents…

A: No. x (x-x) (x-x)2 1 20 8.9 79.21 2 9 -2.1 4.41 3 16 4.9 24.01 4 14 2.9 8.41 5 11…

Q: Find the percentile of the value 39.

A: The formula for the percentile of x is, Percentile of x=Number of value below xn×100% There are 9…

Q: 5) The marketing director of Sea World was concerned about the effectiveness of a recent advertising…

A: a) Pearson's product moment correlation coefficient: x y x^2 y^2 XY 60.51 1.22 3661.46 1.4884…

Q: The data represent the time, in minutes, spent reading a political blog in a day. Construct a…

A: Number of classes = 5 lowest class limit = 0 n = 20

Q: Select the correct answer. The data from a survey on the academic degrees earned by students in the…

A:

Q: The data represent the time, in minutes, spent reading a political blog in a day. Construct a…

A: Solution: Given : X : Time ( in minutes ) spent reading political blog in a day              X = 12,…

Q: The data represent the time, in minutes, spent reading a political blog in a day. Construct a…

A: Formula : Class width = (Maximum - Minimum)/number of classes

Q: The histogram below shows the  amount of time  visitors to a museum spent browsing an  exhibit on a…

A: Note: Hi there! Thank you for posting the question. As your question has more than 3 parts, we have…

Q: The data represent the time, in minutes, spent reading a political blog in a day. Construct a…

A: Obtain the frequency table.   The frequency table is obtained below as follows:   From the…

Q: b. Complete the table. Enter the exact answers (i.e. enter your answers for the relative and…

A: We have given that 21 randomly selected students were asked the number of movies they watched the…

Q: What Happens in Vegas … Listed below are prices in dollars for one night at different hotels located…

A: In this case we need to find the range, variance and standard deviation for the prices in dollars…

Q: The table below consists of 7 numbers. Find the percentile of the value 21. (Note: Percentiles are…

A: Given ,  n = 7 data = 72,94,59,34,112,21,102

Q: ESTION 6 nufacturer needs to test to see the proportion of faulty products they produce. How large…

A: Given:Width of the interval=14%                                 =0.14The margin of error, i.e, E is…

Q: The data in the figure below represents the number of stars earned by 140 performers in a tal…

A: From the given graph we want to find how many performance earned exactly 3 stars.

Q: The data in the figure below represents the number of stars earned by 140 performers in a talent 在…

A: Given data,   Number of 3 stars=?

Q: The data represent the time, in minutes, spent reading a political blog in a day. Construct a…

A:

Q: The table below consists of 7 numbers. Find the percentile of the value 23. (Note: Percentiles are…

A: Given data is  54 81 67 23 51 70 40 Given data in ascending order : 23, 40, 51, 54, 67, 70, 81…

Q: 6. Showing all of your work, find the mean of the following set of data to the correct precision:…

A: Convert all standard form (power of 10) numbers to actual decimal numbers   :…

Q: The sample data below shows the number of hours spent by five students over the weekend to prepare…

A: Solution: The given data is 3, 12, 2, 3 and 5.

Q: The data below are times (in seconds) recorded when statistics students participated in an…

A: The average time (in seconds) by the students = (53 + 52+ 75 + 62 + 68 + 58 + 49 + 49)/8 =  466/8 =…

Q: The data represent the time, in minutes, spent reading a political blog in a day. Construct a…

A:

Q: The data represent the time, in minutes, spent reading a political blog in a day. Construct a…

A: Class limits: These are the two endpoints of a class interval used for tally marking the given…

Q: 50 part-time students were asked how many courses they were taking this term. The (incomplete)…

A: The following table is given. Number of courses Frequency Relative frequency Cumulative frequency…

Q: The data set below represents the ages of 30 executives. Which ages are above the 75th ​percentile?…

A: Given information: The data set representing the ages of n = 30 executives is provided below: 42…

Q: Look at an ogive of the data using five classes. What percent of the wells have a pH less than 8.15?…

A: The minimum value of the data is 7.0 and the maximum value is 8.8. Thus, to obtain 5 classes and to…

Q: The data represent the time, in minutes, spent reading a political blog in a day. Construct a…

A: Given data is2,18,5,0,11,16,19,1,14,14,0,14,14,19,6,1,2,9,5,5Arrange the data in Acending…

Q: 5. The researcher recorded the grade percentage that each Grade 7 student got correct in the last…

A: 5. As the grade percentage of each grade 7 student can be divided under 0%-10%, 10%-20%... 90%-100%…

Q: A researcher for the EPA measured the amount of arsenic in the water near a sewage treatment plant.…

A: We will draw a vertical line through x=70

Q: b. Complete the table. Enter the exact answers (i.e. enter your answers for the relative and…

A: Given that  Frequency distribution  # of movies  Frequency  0 5 1 6 2 4 3 5 4 1

Q: The table below consists of 13 numbers. Find the percentile of the value 40. (Note: Percentiles are…

A: Arrange the given data in ascending order: 11, 15, 17, 21, 23, 28, 33, 34, 37, 40, 43, 47, 50

Q: 50 part-time students were asked how many courses they were taking this term. The (incomplete)…

A:

Q: 2. In 1990, there were 3,300 births in LaPorte County. In 2010, there were 4,200 births in that same…

A: Given information: The number of births in LaPorte country for different years is provided as: i…

Q: Scientists measured the lengths of a species of lizard in a region. The graph below shows that the…

A: From the normal curve, the mean is 22 and the standard deviation is 4.

Q: 19 24 29 34 39 44 49 54 59 Salmon weight (lbs) Weights of salmon are shown in the graph above. Find…

A:

Q: The data represent the time, in minutes, spent reading a political blog in a day. Construct a…

A:

Q: a. Complete the table (Use 4 decimal places when applicable) b. What is the cumulative relative…

A: here given ,  frequency table for # of times floss per week (x)

Q: The table shows Jenny's mark on the last math test. What percentile is her mark of 82? Her mark is…

A: Formula Used: Percentile Rank = P(n+1)100 where P is the percentile. n is the number of data point…

Q: The data represent the time, in minutes, spent reading a political blog in a day. Construct a…

A: Range of the data set = Maximum value - Minimum value = 39-0 = 39 number of classes to be formed = 5…

Q: The data in the relative frequency bar graph below represents the number of stars earned by 140…

A: From the graph, we see that 20% of the performers earned exactly 3 stars. There are total 140…

Q: The table below consists of 13 numbers. Find the percentile of the value 20. (Note: Percentiles are…

A: Given, The table below consist of 13 values: 37 17 46 27 49 42 35 24 31 54 16 56 20     The…

Q: The data represent the time, in minutes, spent reading a political blog in a day. Construct a…

A:

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A: Introduction:The 100 (1 – α) % confidence interval for the population proportion, π is: (π – (zα/2­)…

Q: ixd s 67 Dr 5. Find the percentage of data points that lie above z 1.03. Draw a picture to support…

A: The percentage of data points that lie above Z= 1.03.The P-value is developed using MINITAB:Choose…

Q: The table below shows the relative frequencies of grades on a statistics exam for one class. Show…

A: Given: Grade Relative frequency A 32% B 38% C 18% D 7% E 5%

Q: The data represent the time, in minutes, spent reading a political blog in a day. Construct a…

A: * SOLUTION :-

Q: b. Complete the table. Enter the exact answers (i.e. enter your answers for the relative and…

A: We have given the table with Movies and there absolute frequencies. We have to find the relative…

Q: The data below are times (in seconds) recorded when statistics students participated in an…

A: Given Information: The data represents the times (in seconds) recorded when statistics students…

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.