True or false: the "middle spread," that is the middle 50% of the normal distribution, is equal to one standard deviation.

The mass of a large adult male hippo is about 1,850,000 grams and the mass of a large adult female is about 1,525,000 grams. What is the difference, in kilograms, between the masses of the adult male and female hippos

How to round 42429 to the nearest hundred thousand

A survey of 2541 American households discovered that 64% of the households own one car.

This scale drawing shows a parking lot. What is the length of the longer side of the actual lot?

Saleh is delivering newspapers for his part-time job. He needs to deliver 30 newspapers and has distributed 10 so far. What percent of total number of newspapers has Saleh delivered so far?

For Valentine's Day last year Sonia's flower shop delivered 68 flower arrangements. This year they delivered 95. How many more flower arrangements did they deliver this year than last year?

Write the number with the same value as 28 tens

10. The physician ordered 3.75 mg of Warfarin sodium. Available are Warfarin 7.5 mg scored tablets. How many tablets will you give?

Yolanda and her 3 brothers shared a box of 156 toy dinosaurs. About how many Dino's did each child get?

Tanisha expects that each person will drink two 8 ounce glasses of lemonade at the party. Write an expression to show the words. How many ounces of lemonade does Tanisha need to make