find the expected frequency, $e_{i}$, for the given values of $n$ and $p_{i}$. $n = 140, p_{i}=0.3$…
find the expected frequency, $e_{i}$, for the given values of $n$ and $p_{i}$. $n = 140, p_{i}=0.3$ $e_{i}=square$
Answer
Explanation:
Step1: Recall expected - frequency formula
The formula for the expected frequency $E_i$ is $E_i = n\times p_i$, where $n$ is the sample size and $p_i$ is the probability of the $i$ - th category.
Step2: Substitute given values
Given $n = 140$ and $p_i=0.3$, we substitute these values into the formula: $E_i=140\times0.3$.
Step3: Calculate the result
$140\times0.3 = 42$.
Answer:
42