b2sonicxh
2021-12-08
Lindsey Gamble
Beginner2021-12-09Added 38 answers
Step 1 Introduction
Frequency Distribution: A frequency distribution is representation of data in a graphical (or) tabular manner and it displays that how data frequently occurred in a specified interval
Properties of Frequency Distribution table :
- To construct a frequency distribution the data, need to be sorted or separated into different groups this groups are called as classes.
- Here Classes must be continuous i.e., there should no gaps in the classes.
- The classes must be equal width otherwise the frequency distribution will give un accurate view of data.
- The frequency of data belongs to each class then it recorded in a table of frequency called frequency table.
Step 2
Answer & Explanation
Consider the following table to find the Relative and Cumulative relative frequency
Frequency distribution table:
From the above table Sum of Frequency
Relative frequency (%) : Calculate the relative frequency by dividing the Each frequency value with N = 30. then multiply the obtained value with the 100.
Cumulative Frequency: The cumulative Frequency is calculated as by adding each frequency from a frequency table to the sum of its predecessors. Final value of the cumulative Frequency should equal to the sum of all frequencies.
Cumulative Relative Frequency:
Read carefully and choose only one option
A statistic is an unbiased estimator of a parameter when (a) the statistic is calculated from a random sample. (b) in a single sample, the value of the statistic is equal to the value of the parameter. (c) in many samples, the values of the statistic are very close to the value of the parameter. (d) in many samples, the values of the statistic are centered at the value of the parameter. (e) in many samples, the distribution of the statistic has a shape that is approximately Normal
Construct all random samples consisting three observations from the given data. Arrange the observations in ascending order without replacement and repetition.
86 89 92 95 98.
Find the mean of the following data: 12,10,15,10,16,12,10,15,15,13.
The equation has a positive slope and a negativey-intercept.
1) y=−2x−3
2) y=2−3x
3) y=2+3x
4) y=−2+3x
What term refers to the standard deviation of the sampling distribution?
Fill in the blanks to make the statement true: .
What percent of is
The first 15 digits of pi are as follows: 3.14159265358979
The frequency distribution table for the digits is as follows:
Which two digits appear for 3 times each?
A) 1, 7
B) 2, 6
C) 5, 9<br<D) 3, 8
How to write
What is the simple interest of a loan for $1000 with 5 percent interest after 3 years?
What number is 12% of 45?
The probability that an automobile being filled with gasoline also needs an oil change is 0.30; the probability that it needs a new oil filter is 0.40; and the probability that both the oil and the filter need changing is 0.10. (a) If the oil has to be changed, what is the probability that a new oil filter is needed? (b) If a new oil filter is needed, what is the probability that the oil has to be changed?
Leasing a car. The price of the car is$45,000. You have $3000 for a down payment. The term of the lease is and the interest rate is 3.5% APR. The buyout on the lease is51% of its purchase price and it is due at the end of the term. What are the monthly lease payments (before tax)?
The mean of sample A is significantly different than the mean of sample B. Sample A: Sample B: Use a two-tailed -test of independent samples for the above hypothesis and data. What is the -value?
What is mean and its advantages?