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.

-4

step-by-step explanation:

do 6-10=

if u need it to be negative.

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet