Enter all answers rounded to the nearest thousandth, hundredth or tenth of a foot.
A science class did an experiment testing how high they could launch 7 homemade rockets. The height in feet that each rocket reached is shown in the following data set.
Old Data {60, 68, 74, 74, 83, 85, 93}
Another group launched their rocket the 2nd day and it reached a height of 75 feet. The following data shows the 8 heights including this additional launch.
New Data {60, 68, 74, 74, 75, 83, 85, 93}
Use this to make compare the means, medians, standard deviations and find the quartiles of the new data.
The MEDIAN of the New Data is the MEDIAN of the Old Data.
The box and whiskers plot comes from a 10 question 2nd grade spelling test.
Use it to determine if each statement is true or false.
75% of the class spelled 9.5 or less words correctly.
Enter all answers rounded to the nearest thousandth, hundredth or tenth of a foot.
A science class did an experiment testing how high they could launch 7 homemade rockets. The height in feet that each rocket reached is shown in the following data set.
{60, 68, 74, 74, 83, 85, 93}
Use the data to calculate the mean, median and range.
Then, construct a box and whiskers plot of the data.
What is the SUM of all the heights of the rockets?
What is the MEAN of the heights of the rockets?
What is the MEDIAN of the heights of the rockets?
What is the RANGE of the heights of the rockets?
The value of the 1st quartile is feet and the value of the 3rd quartile is feet.
What is the INTERQUARTILE RANGE (IQR) of heights of the rockets?
Which box and whiskers plot accurately displays the data?
How high would a rocket need to travel on the 8th launch to raise the mean to 80 feet?
The MEAN of the New Data is the MEAN of the Old Data.
The STANDARD DEVIATION of the New Data is the STANDARD DEVIATION of the Old Data.
The value of the 1st quartile of the new data is feet and the value of the 3rd quartile of the new data is feet.
The class averages on the 1st 5 Geometry tests are shown below.
{66,68,73,75,90}
Use the table below to calculate the standard deviation of ALL class averages. A paper copy of the table below will be provided to you. Please record your answers on it and turn it in.
What is the missing deviation?
Answer without rounding.
What is the missing squared deviation?
Answer without rounding.
What is the sum of the squared deviations?
Answer without rounding.
What is the population variance?
Answer without rounding.
What is the population's standard deviation?
Round to the nearest tenth.
66 is more than 1 standard deviation from the mean.
90 is more than 1 standard deviation from the mean.
50% of the class spelled between 7.5 words and 9.5 words correctly.
50% of the class spelled between 9 words and 10 words correctly.
25% of the class spelled 7.5 or more words correctly.