2. Find the 90" percentile using interpolation.

Q: find 2nd quartile for given data 56,89,74,16,32,24,98,9,75,25,15,49

A:

Q: what is the average number of traffic accidents

A: Discrete series means where frequency  of a variable are given but the variable is without class…

Q: Find the 75th percentile (that is third quartile) for the given data. 1, 2, 4, 6, 8, 9, 11, 15, 19,…

A:

Q: find 1st deciles for giiven data  12,15,14,6,9,7,5,3,42,15,85,75,63,45,25

A:

Q: Take 50 observations at random ranged from (117- 254). Make a grouped frequency distribution. Find…

A: We need to take a 50 observations at random ranged from (117-254). For this we can use…

Q: compute for the 2nd quartile, 7th decile and 75th percentile

A: Given that  We have to find the 2nd quartile, 7th decile, 75th percentile :

Q: Take 50 observations at random ranged from (117- 254). Make a grouped frequency distribution. Find…

A: We draw a 50 random numbers between 117 to 254 using command #RANDBETWEEN() in excel. 195 158…

Q: What is the percentile for Colorado, where 10.1% of the residents are aged 65 and olde

A: From the stem plot, we can see that only 4 of the 50 states (7.0%,8.8%,9.8% and 10.0%) having…

Q: Interpret the desciptive statistics

A: The objective is to interpret the descriptive statistics. Descriptive statistics are used to…

Q: How is a sample related to a​ population?

A: Population is set of all elements about which we want to know. While the sample is a part of such…

Q: find 4th deciles for given data  12,15,14,2,6,32,25,6,85,75,62,96,35,14,26,35,28,65,8

A:

Q: Find 56th percentile for given data 11,58,45,25,65,45,65,12,35,88,14,56,18,92,35,…

A: Given data is11,58,45,25,65,45,65,12,35,88,14,56,18,92,35, 87,45,65,98,41,82,6

Q: Based on this histogram, draw the ogive (the cumulative relative frequency polygon) for the data.

A: By using the given histogram, the cumulative relative frequency is, Selling time Relative…

Q: Find mean, sample variance, SD and CV for the following data. 20, 25, 35, 30, 40, 45, 35

A:

Q: Can the median split a distribution into a 85% : 15% frequency ratio of the observations?

A: Given: split the distribution into a 85% : 15% frequency ratio of the observations

Q: find 1st quartile for given data  12,15,1,63,34,56,68,78,96,45,12,35,47,46,36

A:

Q: Based on the histogram, draw the ogive (the cumulative frequency polygon) for the sample data.

A: The cumulative frequency for given frequency is, Number of hours worked per week Frequency…

Q: se the correct histogram for this sample.

A: We need to produce a histogram of frequencies. These are the sample data that have been provided:…

Q: What quartile is equivalent to percentile 75?

A: The 75th percentile is value below which 75% of data observations lie. Note : Since you have asked…

Q: Explain the Representative Sample from a Population in Which the Variables Are Related?

A: The population is the area of interest for which, one want to inquire the characteristics or trend.…

Q: find 2nd quartile for given data  12,15,63,98,74,56,39,5,23,45

A:

Q: find coefficient of variation for given sample.   45,78,42,1814,25,45,85,2,8,15,47,89,29,65

A:

Q: Describe what you see in the attached scatterplot for a sample of 20 low birth weight infants.

A: Use the Excel and Calculate the Correlation  Followings are the Steps to Calculate Correlation 1)…

Q: Is it more likely to hit the area in white or blue and by how much?

A: The area of the square is= 18×18=324  square inch The radius of the circle is= 2+3+3=8 inches So the…

Q: Assume the scores at this school have the same distribution as national scores. What is the mean of…

A: here given , The scores of individual students on the American College Testing (ACT) Program…

Q: We would like to determine the average height of the overall student body at Michigan State…

A: Yes, It is necessary to take a sample from the overall student body.

Q: find 1st quartile for given data  15,42,63,98,75,63,45,51,63,34,25,19,85

A:

Q: List three reasons why samples are used in statistics

A: Solution: Population is the entire set of units under study. Sample is the subset of population.

Q: Find the 5th and 95th percentiles for average temperatures from a group of 106 people using the…

A: The pth percentile of a set of observations is the value below which, p% or (p/100) proportion of…

Q: find 5th quartile for given data  12,15,3,4,12,18,17,5,6,9,20,19,13,4,7,17

A: Solution  Its 50 th quartile not 5th quartile

Q: The following are distances (in miles) traveled to the workplace by 19 employees of a certain…

A: We have given that the distances traveled to the workplace by 19 employees of a certain hospital.

Q: find 3rd  percentile for given data 12,15,44,52,16,46,42,65,75,85,42,3

A:

Q: Determine the statistical relationship between the average answer time (seconds) and the average…

A: Simple linear regression model: A simple linear regression model is given as y = b0 + bx, where y is…

Q: examine four levels of measurement?

A: There are four levels of measurement  nominal ,ordinal  and interval /ratio  – with nominal being…

Q: find range and population variance for given data  45,56,12,1,3,4,5,67,89,78,45,25,87

A:

Q: The table below lists the populations, in thousands, of several rural western countries. What is…

A: Mean is the average value of the observations.

Q: What is the 60th percentile of following numbers 49,50,55,55,60,67

A: The numbers as follows 49,50,55,55,60,67

Q: An instructor recorded the following number of correct items (in a quiz with 10 questions) for the…

A: Here we had given that exam is multiple choice exam and the score is our variable. We had given 12…

Q: Of the 200 American film enthusiasts, the average age is: 30 years, while the standard deviation is…

A: The normal distribution in the center is generally denser and basically less dense at tails. There…

Q: The 25th and 75th percentile points

A: Given Data is :

Q: 2, 3, 4, 5, 11, 11, 13 :Calculate 20th percentile (P 20), from the following data

A: given data are 2,3,4,5,11,11,13 we need to compute the 20% percentile base on the data provided…

Q: find 3rd quartile for given data 12,15,14,18,16,1,5,9,6,7,6,7,15,14,16,32,25,5

A:

Q: Find mean, median and mode of following data:

A: Given data, Class Interval Frequency 2 to 8 5 9 to 15 13 16 to 22 7 23 to 29 3 30 to…

Q: find out first and third quartile for given data.. 74,52,45,27,85,96,65,64,9,85,23

A:

Q: The number of stories in the 13 tallest buildings for two different cities is listed below. Which…

A: The range tells you the spread of your data from the lowest to the highest value in the…

Q: Construct a grouped frequency distribution, with percent frequencies. Copy the table to Microsoft…

A: Note: In case of multiple questions, as per the guidelines answer to first question will be…

Q: Based on the histogram, draw the ogive (the cumulative relative frequency polygon) for her data.

A: By using the histogram, the cumulative relative frequency is, Completion time Relative frequency…

Q: Given the sample scores of 82,84,80,88,86,90. Find the standard deviation. nearest hundredths.…

A:

Q: a) Represent data by using Cumulative Frequency Polygon.  b) Find Population Standard Deviation.

A: Part a: We plot the less than cumulative frequency polygon using the step by step procedure in excel…

Q: Find the standard deviation of the data set: 15, 42, 53, 7, 9, 12,14, 28,47. 16.78

A: Given data is ,15, 42, 53, 7, 9, 12, 14, 28, 47sample size(n)=9sample…

Percentage

A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.

Algebraic Expressions

In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.

Numbers

Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.

Subtraction

Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.

Addition

Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.