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find the mean median and mode for each set of data
1. 57, 79, 83, 67, 74
2. 42, 53, 41, 62, 38, 49
3. 23, 21, 20, 22, 24, 19, 21, 18, 21
4.85, 5, 8, 7, 1, 8, 7, 1
pls i need answer. ​


Sagot :

Answer:

The mean (average) of a data set is found by adding all numbers in the data set and then dividing by the number of values in the set.

The median is the middle value when a data set is ordered from least to greatest.

The mode is the number that occurs most often in a data set. (Khan, n.d.)

1. Mean: (57+79+83+67+74) ÷ 5  = 72

Median: 57, 67, 74, 79, 83 = 74

Mode: ?

2. Mean: (42+53+41+62+38+49) ÷ 6 = 47.5

Median: 38, 41, 42, 49, 53, 62 = (42+49) = 45.5

Mode: ?

3. Mean: (23+21+20+22+24+19+21+18+21) ÷ 9 = 21

Median: 18, 19, 20, 21, 21, 21, 22, 23, 24 = 21

Mode: 21