Evaluate the expression. -2.035 – 1.008 - 3.04 + 0.008
1 answer:
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Answer:
324
Step-by-step explanation:
given that in a poll, 74% of the people polled answered yes to the question "Are you in favor of the death penalty for a person convicted of murder?"
i.e. Sample proportion
Margin of error = 4% = 0.04
Confidence level =90%
Z critical value for 90% = 1.645
Margin of error = 1.645 * std error
Hence std error =
Std error is also equal to
Sample size should be 324.
The formula is sample size = (Z critical value)^2 (pq)/(Margin of error )^2
31 out of 50 is 62%
Divide 31 over 50:
Multiply 0.62 and 100. This will convert the decimal to a percentage:
Divide 31 over 50:
Multiply 0.62 and 100. This will convert the decimal to a percentage:
Answer:
Step-by-step explanation:
√a^4 is the same as:
√a × √a × √a × √a
group them as 2 pairs of
(√a × √a) × (√a × √a)
which makes
a × a
which is the same as