A fair die is rolled 20 times Calculate the variance of the

Mr Janes can write 10 tests in 4 hours This weekend he needs to write 25 tests How long will it take him Select all of the proportions below that model this situation Note you do not need to solve for 10 tests 2 hours 25 tests 10 tests 4 hours 4 hours hours 25 tests 10 tests 25 tests 4 hours hours

n Newton s equation for universal gravitation is the force of gravity directly or inversely proportional to the square of the distance between the two masses

A coin is tossed 8 times What is the probability of getting at least one head Express your answer as a fraction or a decimal number rounded to four decimal places Ancwor E Tables F Koynar

Suppose that prices of recently sold homes in one neighborhood have a mean of 215 000 with a standard deviation of 8900 Using Chebyshev s Theorem what is the minimum percentage of recently sold homes with prices between 197 200 and 232 800 Round your answer to one decimal place

ancy distribution of the F scale intensities of recent tornadoes Use the frequency distribution to construct a frequency polygon Does the graph suggest that the distribution is skewed If so how Construct a frequency polygon using the data Choose the correct graph below Q IN OA 30 Frequency F Scale B 30 04 1 Frequency F Scale Does the graph suggest that the distribution is skewed If so how Q OA The distribution appears to be skewed to the right or positively skewed OB The distribution does not appear to be skewed OC The distribution appears to be skewed to both sides OD The distribution appears to be skewed to the left or negatively skewed D Frequency 30 I F Scale Q Tornado F Scale Frequency 01234 67231 1 D Frequency 30 0 F Scale Q

Hint s Check My Work Consider a sample with data values of 27 24 23 17 30 33 28 and 24 Compute the range interquartile range variance and standard deviation Round to 2 decimals if necessary Range Interquartile range Variance Standard deviation 16 5 00 X X

F The table below shows the frequency distribution of the rainfall on 52 consecutive Sundays in a certain city Use the frequency distribution to construct a histogram Do the data appear to have a distribution that is approximately normal Class 0 0 19 0 20 0 39 0 40 0 59 0 60 0 79 0 80 0 99 1 00 1 19 1 20 1 39 Frequency 26 6277ad 13 3 Choose the correct histogram below A B O C 30 20 10 0 0 0 0 2 0 4 0 6 0 8 1 0 1 2 1 4 30 20 10 10 0 0 02 04 06 08 10 12 14 30 20 10 0 0 0 02 04 06 08 10 12 14 C Q

data to uct the relative quency Natural births randomly selected from four hospitals in New York State occurred on the days of the week in the order of Monday through Sunday with the frequencies 54 66 72 55 53 46 54 Does it appear that such births occur on the days of the week with equal frequency Construct the relative frequency distribution Relative Frequency Day Monday Tuesday Wednesday Thursday Friday Saturday Sunday

Consider a sample with data values of 7 19 8 15 and 11 Compute the z score for each of the five observations z score for 7 z score for 19 Z score for 8 z score for 15 z score for 11

Consider a sample with data values of 20 26 28 15 30 34 24 and 26 Compute the range Compute the interquartile range Compute the sample variance Round your answer to two decimal places Compute the sample standard deviation Round your answer to two decimal places