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Sagot :
Answer:
See below ~
Step-by-step explanation:
(a) Mean of the data
- 2.4 + 1.6 + 3.2 + 0.3 + 1.5 / 5
- 9/5
- 1.8
(b) New mean after each data point increased by 10
- 12.4 + 11.6 + 13.2 + 10.3 + 11.5 / 5
- 59/5
- 11.8
(c) New mean after each data point doubled [from (b)]
- 24.8 + 23.2 + 26.4 + 20.6 + 23 / 5
- 118/5
- 23.6
Answer:
a) 1.8
b) 11.8
c) 23.6
mean: sum of numbers/total numbers
Part A
⇒ mean: (2.4+1.6+3.2+0.3+1.6)/5 ⇒ 9/5 ⇒ 1.8
Part B
If all the data's are increased by 10
{12.4, 11.6, 13.2, 10.3, 11.5}
Then mean ⇒ (12.4+11.6+13.2+10.3+11.5)/5 ⇒ 11.8
Part C
if the new data doubled, the mean will be double
11.8 * 2 = 23.6
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