Question

If mean of 7, 9, 10, 12, p, 15, is 10, then value of p is.... *

5

6

4

7

​

Answer 1

Answer:

p=7

Step-by-step explanation:

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Answer 2

Given:

• Mean = 10

To find:

• Value of p = ?

Method:

$\bf{Mean= \dfrac{Sum \: all \: observations}{Total \: Number \: of \: observations}}\\\\\\\\\implies \sf{10 = \dfrac{7 + 9 + 10+12+p+15}{6}}\\\\\\\implies \sf{10 = \dfrac{53+ p}{6}}\\\\\\\implies \sf{10 \times 6 = 53 + p}\\\\\\\implies \sf{60 = 53 + p}\\\\\\\implies \sf{p = 60 - 53}\\\\\\\therefore \boxed{\bf{\large{p = 7}}}$

∴ The value of p is 7

Additional Information:

• The 3 measures of Central Tendency are Mean, Median and Mode.
• Median is the middlemost term in a list of observations arranged in ascending or Descending order.
• Mode is the observation which is repeated most often in the observation