Suppose you ride to school with a friend and often arrive at a certain stop light when it is red. one day she states, "it seems like this light is green only 10% of the time when we get here." you think it is more often than 10% and want to test this. you keep track of the color (green/not green) the next 20 times you go to school and find that 4 times the light is green when you arrive. you wish to see if your sample provides strong evidence that the true proportion of times the light is green is greater than 10%. in other words, you are testing the hypotheses

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify

1 ?

step-by-step explanation:

u said 1+1+1+1+1+1+1+1+1+1+1+1*0 so ur adding 1 but then multiplying by 0 so its 0 but then u said 1*0+1 so now ur adding 1 so the answer is juan ?

~leah

the answer is:

the lateral area is equal to

to find the lateral area of the square pyramid, first we need to find the perimeter of the base, and then, find the lateral area using the following formulas:

where,

s, is the base length

slant height, is the height of a the side of the pyramid

we are given:

now, calculating the perimeter of the base, we have:

then, calculating the lateral area:

hence, we have that the lateral area is equal to

have a nice day!

answer:

at time x=0 we have 1000, at time x=1 we have 2000, at time x=2 we have 4000.  

so that's an initial value of 1000 and a ratio of 2,

y = 1000 (2^x)

hope this !