In a sample of 20 men. the mean height was 178 cm. In a sample of 30 women, the mean height was 164 cm. What was the mean height for both groups put together?

Answer:

Step 1 of 3:

Given that, in a sample of 20 men have the mean height was 178 cm.

That is the total height of 20 men is

In a sample of 30 women have the mean height was 164 cm.

That is the total height of 30 women is