Answer:
Step-by-step explanation:
Given
Required
Determine the standard deviation
Standard Deviation (SD) is calculated as:
Substitute values for n and p
Convert percentage to decimals
<em></em><em> approximated</em>
Total coins = 6 + 7 + 5 = 18
Red = 6
Blue = 7
Green = 5
P(Red, then blue, then green) = (6/18)(7/18)(5/18) = 35/972
Answer: 35/972
Answer:
Step-by-step explanation:
<u>Find the z-score:</u>
- z = (x - μ) / σ
- z = (65 - 70) / 4 = -1.25
From the z-score table we get corresponding value of 0.1056
<u>Proportion of scores higher than Cam's score:</u>
- 1 - 0.1056 = 0.8944 = 89.44%