What was In a sample of 25 men the mean height was 174 cm In

What was

In a sample of 25 men, the mean height was 174 cm. In a sample of 30 women, the mean height was 151.

What was

the mean height for both groups put together?

Round your answer to the nearest whole number.

Let x_m be the mean height of 25 males and x_f be the mean height of 30 women.

Then the mean height for both the groups put together is

x = (25x_m+30x_f)/(30+25)

= (25*174+30*151)/55 (Since x_m=174 cm and x_f=151 cm)

=161.45 = 161 (rounded)

Thus the average height of both the groups combined is 161 cm.