A proofreader checked 160 ads for grammatical errors. The sample frequency distribution is shown: $$\begin{array} { | l | c | c | c | c | }
\hline \text { Number of Errors } & 0 & 1 & 2 & 3 \
\hline \text { Observed Frequency } & 10 & 65 & 71 & 14 \
\hline
\end{array}$$ Under the null hypothesis of a uniform distribution, the expected number of times we would get 0 errors is:
A)10.
B)20.
C)30.
D)40.

Question

A proofreader checked 160 ads for grammatical errors. The sample frequency distribution is shown: $$\begin{array} { | l | c | c | c | c | } 
\hline \text { Number of Errors } & 0 & 1 & 2 & 3 \
\hline \text { Observed Frequency } & 10 & 65 & 71 & 14 \
\hline
\end{array}$$ Under the null hypothesis of a uniform distribution, the expected number of times we would get 0 errors is:
A)10.
B)20.
C)30.
D)40.

Quizplus · Accepted Answer

The Answer of A proofreader checked 160 ads for grammatical errors. The sample frequency distribution is shown: $$\begin{array} { | l | c | c | c | c | } 
\hline \text { Number of Errors } & 0 & 1 & 2 & 3 \
\hline \text { Observed Frequency } & 10 & 65 & 71 & 14 \
\hline
\end{array}$$ Under the null hypothesis of a uniform distribution, the expected number of times we would get 0 errors is:
A)10.
B)20.
C)30.
D)40.

A Proofreader Checked 160 Ads for Grammatical Errors Under the Null Hypothesis of a Uniform Distribution, the Expected