Statistics question? i know i already asked it but i got no this is making me cry? how would i solve this? my course lesson was very vague and didn't . i've been working so hard and i've gotten nowhere. tell me how to solve "a nuclear reactor facility has two separate safety systems in place to prevent a nuclear meltdown. they prevent meltdown by shutting down the reactor when the temperature reaches the danger level. the first system shuts down the reactor 80% of the time when the danger level is reached. the second system (which is completely separate from the first) shuts down the reactor 90% of the time when the danger level is reached. a. use your calculator to do 10 repetitions with the first system alone. theoretically, it should successfully shut it down 16 out of 20 times. b. use your calculator to do 10 repetitions with the second system alone. theoretically, it should successfully shut it down 18 out of 20 times. c. use your calculator to do 20 repetitions with the first and second systems working together. the reactor will successfully shut down if one or both systems are not working. " i know you have to use randint on the calculator but i don't have a calculator so i am not able to do the procedure. me with the calculations.

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explanation

the graph has a slope of 1/3 because each time you move up 1, you go to the right 3. so, slope = rise/run = 1/3. we can cross choice a off the list since we want a slope of 3, rather than 1/3.

the first table shown has a slope of -3. this is because the rise is -6 and the run is 2, so slope = rise/run = -6/2 = -3. note how x increases by 2 each time (run) and y drops by 6 each time (rise). choice b can be eliminated.

the second table has a slope of 3. each time x goes up by 1, the y values increase by 3. slope = rise/run = 3/1 = 3. alternatively you can use the slope formula to prove that the slope is 3 here. use any two rows of values to generate the two points. choice c is one of the answers

the third table also has a slope of 3. let's use the slope formula to prove as such. i'm going to use the first two rows of the table. so i'll use the two points (2,1) and (5,10)

m = slope

m = (y2-y1)/(x2-x1)

m = (10-1)/(5-2)

m = 9/3

m = 3 so we get a slope of 3

choice d is the other answer

d. millimeters per hour.

step-by-step explanation:

we are given that,

carlo used a rain gauge to measure the amount of water his lawn is receiving from the sprinklers.

since, according to the options, we see that,

water cannot be measured by 'miles per hour', 'meters per second' and 'grams per seconds'.

we get that, the water can be measured by 'millimeters per hour'.

hence, the appropriate rate for describing the amount of water is 'millimeters per hour'.