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Question 1) Various modes of transport used by 980 students in a given school are given below:
Mode of transport
Frequency
School Bus
350
Private Bus
245
Bicycle
210
On Foot
175
Draw a pie-chart re-presenting this table.
Question 2) Construct a histogram for the following table which shows the number and respective heights of Sandalwood trees planted by a farmer.
Height (feet)
0-2
3
3-5
8
6-8
10
9-11
5
12-14
1
Question 3) The following is the frequency distribution of 30 automoblies tested for fuel efficiency.
Mile/Gallon
8-12
13-17
18-22
15
23-27
28-32
2
Determine the following:a) The medianb) The meanc) The standard deviationd) The Inter-Quartile Range.
Question 4) An auto manufacturing company wanted to investigate how the price of one of its car models depreciates with age. The research department took a sample of eight cars of this model and collected the following information on the age (in years) and prices (in thousands of dollars) of these cars.
Age
6
9
Price($'000)
18
94
50
21
145
42
36
99
a) Construct a scatter diagram for these data using either a graph paper or any graphing software such as Excel etc. Does the scatter diagram exhibit a linear relationship between age and prices of cars?b) Determine the equation of the regression line.c) Predict the Price of a 4 year old car of the same model.d) Determine the Coefficient of Determination and state what it means.
discretionary household income in a certain state is exponentially distributed with a mean of 4800 per year i.e. ?
determine whether each of the following is counted in the m1 measure of the money supplyi.the coins in your piggy
What is the quadratic formula? What is D in that formula? How can D in that formula let you know the type of answer you will get when you solve the equation? What are the types of possible answers?
Explain with an example how to use the LCD (Least Common Denominator) to simplify a complex fraction.
Neglect air resistance and use g = 32 feet per second per second for the acceleration due to gravity. With what velocity does the sandbag strike the ground?
Given the data choose a graph to display this data, and give three reasons why you feel this is an appropriate choice.
x = 3 + 5t, y = 1 + 4t for 1 = t = 2. Explain why your answer is reasonable.
An Air Force study indicates that the probability of a disaster such as the January 28, 1986 explosion of the space shuttle Challenger was 1 in 35. The Challenger flight was the 25th mission. How many disasters would you expect in the first 25 flig..
Determine the number of subsets of {ham, turkey, chicken, tomato, feta cheese, cheddar cheese, cucumbers, onions, red peppers, hot peppers }.
43?coins, all of which are either quarters or nickels. The total value of the coins in the jar is ?$nbsp 6.95
1. in a random sample of 60 computers the mean repair costnbsp is 150 with a standard deviation of 36. construct a 99
In order to help pay for college, Fatima invested part of $8000 she earned in an account paying 10% interest and the rest at 12% interest (simple interest). if her annual income from these investments was $900, how much was invested at each rate.
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