The standard deviation for a data set is 7. The mean is 249.

What is the margin of error for a confidence level of 95%?

The average of 6/4, 6/4, 6/4?

The dog park is 9 M long if it covers 3 3/8 square miles how wide is it

The lengths of songs on the radio are normally distributed with a mean length of 210 seconds, If 38.2% of all songs have lengths between 194 and 226, then the stadard deviation of this distribution is

Exercise #4: Kirk has 12 dollars less than Jim. If Jim spends half of his money, and Kirk spends none, then Kirk will have two dollars more than Jim. How much money did they both start with? Remember to use "Let's" statements to solve your equation.

Mary spent a total of $290.28 for a party. She spent $200.22 on food, plus an additional $30.02 for each hour of the party. How long was the party?

Find 3 consecutive numbers where the product of the smaller two numbers is 19 less than the square of the largest number.

Membership to a video game club is $50 a year and $3 per game rented. At the end of the year Chue had spent $296. How many games had he rented?

there are 26 members and 5 chaperones. They have to take a van and sedan for a trip. each van fits in 7 people and the sedan fits 5. How many sedan and vans will they take if there is a total of 31 people?

Where did Cailou come from?

Twelve more then nine-sevenths of a number is twenty two. What is the number