The heights of adult men in America are normally distributed, with a mean of 69.2 inches and a standard deviation of 2.64 inches. The heights of adult women in America are also normally distributed, but with a mean of 64.6 inches and a standard deviation of 2.58 inches. What percentage of men are SHORTER than 68 inches? Round to nearest tenth of a percent.

C.

Step-by-step explanation:

We are asked to find the product of our given numbers: 0.405 m and 553 m.

Upon multiplying both numbers, we will get:

Now, we will use significant figures rule to give our final answer. The rules are:

Any non-zero digits are significant. The zeros between two digits are always significant.Leading zeros (zeros before non-zero numbers) are not significant. Trailing zeros (zeros after non-zero numbers) are significant, if they are after decimal. If trialing zeros without decimal are not significant.

Since we have three non-zero digits after decimal, so these are significant digits.

Therefore, the product of our given numbers would be and option C is the correct choice.