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Peak Power Deficit

Data about th...

Question

Data about the number of electricity units consumed by a householder in a locality during the last 24 hours is a primary data.

A

True

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B

False

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Solution

The correct option is A True

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Q. A student is asked to collect the information about the number of electricity units consumed by a householder in a locality during the last 24 hours, the data thus collected is known as

Q. Which form of graph is more appropriate for comparing the electricity usage data of two households in relation to the number of people in each house? Electricity Consumed (units) Number of Person in a House House A House B

4	8	10
6	13	12
8	15	17
10	18	20

Q. Electricity consumed by different households on a particular day are tabulated below.
Number of Persons in House Consumption of Electricity (units)

$4$	$8$
$6$	$13$
$8$	$15$
$10$	$18$

Choose the correct scatter plot from the following which correctly represents the given data set.

Q. The following frequency distribution gives the monthly consumption of electricity of

68

consumers of a locality. Find the median, mean and mode of the data and compare them.

Monthly consumption (in units)	Number of consumers
65-85	4
85-105	5
105-125	13
125-145	20
145-165	14
165-185	8
185-205	4

Q. Students at a local college were asked how many hours they slept last night. The adjoining chart shows the data . A bar graph of this data will be made on a grid that is 20 units. What scale would be most appropriate for the axis labelled "Number of Students" ?

Hours of Sleep	Number of Students
6	14
7	26
8	28
9	15
More than 10	6

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Peak Power Deficit

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