Question

Consider the data collected from a survey of a
colony
Favourite sports Watching Participating
Cricket
1250
650
Basket ball
450
350
Swimming
500
350
Hockey
450
250
Athletic
250
100
Dell
As worksheet
Patn
Am
Jaip
Uda
(a) Draw a double bar graph choosing appropriate
scale
What do you infer from the bar graph?
(b) Which sport is most popular?
(c) Which sport is least popular?
(d) Which is more preferred, watching or
participating in sports?
(e) Name the sport which has the least difference
in its watching and participating?
plz dont spam..​

Answer 1

Answer:

This is a classic example of finding mean and standard deviation using Z values.

From this page find the Z value corresponding to 31% area under the curve and 92% (100-8) percent area under the curve.

Math Is Fun Virtual Manipulative

Note: You'll probably be given tables to lookup in your quizzes.. they're a bit confusing. But you might as well learn how to use it.

As you know:

Z=X−μσZ=X−μσ

Put in X and Z values values twice, you'll have two linear equations. Solve them and the answer is yours!

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