20 POINTS 1. Draw a histogram from all the data. Starting at the bottom row, for each set of 10 flips, place an "x" in the column corresponding to the number of heads that set produced. Your histogram should look similar to the example below:
2. Calculate the mean and standard deviation. mean = _, standard deviation = _
3. Calculate the percent of the data that is within 1, 2, and 3 standard deviations of the mean. within
1 standard deviation = _% within
2 standard deviations = _% within
3 standard deviations = _%
4. Compare your results to a normal distribution. Interpret any differences.

Teams of 4 are competing in a 1/4 mile relay race. each runner must run the same exact distance. what is the distance each teammate runs?

Solve the following simultaneous equation by using an algebraic method (either substitution or elimination) 2x + 3y=-4 4x-y=11

Francisco's credit card has an apr of 28.98%, calculated on the previous monthly balance. his credit card record for the last 7 months is shown in the table below francisco is trying to figure out what this all means. answer the following questions: what is the total amount that francisco has paid in interest over the 7 months? what is the total amount that francisco has made in payments over the 7 months? how much of francisco's payments have gone to paying down the principal on his account? what is francisco's new balance at the end of month 8? what will francisco be charged for interest for month 8?