Q. 14.8( 4 Votes )

# Find the mean of the distribution

Answer :

We first, find the class mark x_{i} of each class and then proceed as follows.

Therefore, mean

Hence, mean of the given distribution is 5.5.

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PREVIOUSA bag contains slips numbered from1 to 100. If Fatima chooses a slip at random from the bag, it will either be an odd number or an even number. Since, this situation has only two possible outcomes, so the probability of each is 1/2.Justify.NEXTCalculate the mean of the scores of 20 students in a mathematics test

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