. Assume the random variable X it’s normally distributed with a mean of 140 and the standard deviation of 20
1. Find p(x<152) write what you type in your calculator
2. Find p(120 3. Find the 98th percentile for x
4. Find the x-values that separate the middle 80%

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it

this linear equation would have just one solution.

step-by-step explanation:

the reason why this would have one solution is that it is an expression with just one variable. since that variable is not raised to a power, it will always have just one solution.