Based on a normal distribution curve, calculate the probability of an individual being 60 years or...
Based on a normal distribution curve, calculate the probability of an individual being 60 years or older in this population. Show the Excel formulas or your hand calculations. Include screenshots as needed to illustrate this.
| Age |
| 18 |
| 20 |
| 21 |
| 24 |
| 26 |
| 29 |
| 30 |
| 31 |
| 32 |
| 35 |
| 35 |
| 36 |
| 37 |
| 39 |
| 40 |
| 42 |
| 42 |
| 42 |
| 44 |
| 45 |
| 46 |
| 48 |
| 49 |
| 50 |
| 52 |
| 53 |
| 54 |
| 58 |
| 59 |
| 61 |
Homework Answers
Solution:-
|
Age |
|
|
Sum |
1198 |
|
Mean |
39.9333333333333 |
|
S.D |
11.9017046977584 |
|
Count |
30 |
|
S.E |
2.17294404524249 |
The probability of an individual being 60 years or older in this population is 0.046.
x = 60
By applying normal distribution:-
z = 1.686
P(z > 1.686) = 0.046
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