First subtract 8.5 from both sides, then divide the -1.2 to get x by itself
x=1.5
The answers you have for each of them are right
Odd Numbers : 1, 3, 5, 7 = 4 numbers
Total numbers on 8-sided die = 8
P(rolling an odd number) = 4/8 = 1/2
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-8g is greater than or equal to 14
Answer:
a) sample size is 40
Step-by-step explanation:
(a)
minutes
Margin of error, E is 75 seconds E=75/60= 1.25 minutes.
The level of significance
for 95% level of significance
For 95% confidence interval
from standard deviation table
Sample size required, n

Rounding off, n=40
Sample size =40
Keywords:
95% confidence, sample size, Wall Street Journal