Question

The data show the heights in feet of 14 roller coasters. find the mean, median, midrange, and mode for the data.

Answer 1

The mean of the heights of roller coaster is 27.92 feet, median is 21, mode is 16 and mid range is 35.5.

Given heights in feet of 14 roller coaster 11,12,13,14,16,21,25,26,31,40,51,55,60.

We have to calculate the mean, median, mid range and mode for the data.

Mean is the sum of numbers divided by the numbers.

Mean=∑X/n

∑X=11+12+13+14+16+21+25+26+31+40+51+55+60

=391

n=14

Mean=391/14

=27.92 feet.

Median is the central value of the data given.

Median=(n/2)th term ,when  n is even, ( n/2)th term, (n+1)/2th term when n is odd.

Median=14/2th term=7th term which is 21.

Mode is the number which has higher frequency.

Mode is 16 because it comes 2 times.

Mid range is the sum of upper value and lower value of data divided by 2.

Mid range=(11+60)/2==35.5.

Hence the mean is 27.92 feet, median is 21 feet, mid range is 35.5 feet, mode is 16 feet.

Learn more about mean at brainly.com/question/1136789

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Question is incomplete as the values of height should be included as under:

11,12,13,14,16,16,21,25,26,31,40,51,55,60.