In a sample of 10 cabinets, the average height was found to be 37.3in. with a standard deviation of 3.

Give a point estimate for the population variance of the height of the cabinets. Round your answer to two decimal places, if necessary.

Step-by-step explanation:

For this case we have a sample of n =10 and we have the following statistics:

And we want to estimate the population variance. We need to remember that the population variance is given by this formula:

And the sample variance is given by:

And we can find a formula for the population variance in terms of the sample deviation like this:

And replacing we got:

she drove 134 miles

step-by-step explanation:

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x