Find the Indicated Expected Frequency $$\mathrm { E } _ { 2,2 }$$

question 6

Multiple Choice

Find the indicated expected frequency.
-A medical researcher is interested in determining if there is a relationship between adults over 50 who walk regularly and low, moderate, and high blood pressure. A random sample of 236 adults over 50 is selected and
The results are given below. Find the expected frequency $$\mathrm { E } _ { 2,2 }$$ to test the claim that walking and low, moderate,
And high blood pressure are not related. Round to the nearest tenth if necessary. $$\begin{array} { l | c c c } \text { Blood Pressure } & \text { Low } & \text { Moderate } & \text { High } \\\hline \text { Walkers } & 38 & 64 & 20 \\\text { Non-walkers } & 24 & 63 & 27\end{array}$$

• A)61.3
• B)29.9
• C)65.7
• D)22.7

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