Math, asked by aaruhi7, 1 year ago

find the mean and median of the following numbers 155, 160, 145, 149, 150, 147, 152, 144, 148

Answers

Answered by akhi127
22
mean = sum of observations / no. of observations

155+160+145+149+150+147+152+144+148/9=150

the mean of the give data is 150

median :

ascending order of given data : 144,145,147,148,149,150,152,155,160

the mid value of given data is 149
Answered by vinod04jangid
1

Answer:

Hence the mean and median is 149

Step-by-step explanation:

Given: 155,160, 145, 149, 150, 147, 152, 144 and 148

To find Median

Solution: duranging the data in exending order, we have

c) 144, 145, 147, 148, 149, 150, 152, 155, 160

=) Here n = 9 , which is odd

2. Median: value eta * ((n + 1)/2) ^ (1 / n) tum

Rightarrow((9 + 1)/2) ^ (1h) * tam = (10/2) ^ (1h) * tam = 5 ^ (1h) * tam = 149

The median of a finite list of numbers is the "middle" number, when those numbers are listed in order from smallest to greatest.If the data set has an odd number of observations, the middle one is selected. For example, the following list of seven numbers.

1, 3, 3, 6, 7, 8, 9has the median of 6, which is the fourth value.

If the data set has an even number of observations, there is no distinct middle value and the median is usually defined to be the arithmetic mean of the two middle values.[1][2] For example, this data set of 8 numbers.

1, 2, 3, 4, 5, 6, 8, 9has a median value of 4.5, that is {\displaystyle (4+5)/2}{\displaystyle (4+5)/2}. (In more technical terms, this interprets the median as the fully trimmed mid-range).

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