On three days, Ben throws darts at a target. Here are his results.

Number of hits

Number of misses

30

10

Number of throws

Monday

40

Tuesday

30

Wednesday

50

Total

120

18

12

36

14

84

36

(1)

a) Use Tuesday's results to estimate the

probability of Ben hitting the targe.

b) Use the total of the results to estimate the

probability of Ben of hitting the target.

c) Which estimate would give the most reliable probability?

A- the one from Tuesday or B - the one from the Total?

(1)

(1)

Total marks: 3

In one day there are too high tides into low tides and equally spaced intervals the high tide is observed to be 6 feet above the average sea level after six hours passed a low tide occurs at 6 feet below the average sea level in this task you will model this occurrence using a trigonometric function by using x as a measurement of time assume the first high tide occurs at x=0. a. what are the independent and dependent variables? b. determine these key features of the function that models the tide: 1.amplitude 2.period 3.frequency 4.midline 5.vertical shift 6.phase shift c. create a trigonometric function that models the ocean tide for a period of 12 hours. d. what is the height of the tide after 93 hours?

Write the factored form of this trinomial 9x^2+18x-7

Now, martin can reasonably guess that the standard deviation for the entire population of people at the mall during the time of the survey is $1.50. what is the 95% confidence interval about the sample mean? interpret what this means in the context of the situation where 95 people were surveyed and the sample mean is $8. use the information in this resource to construct the confidence interval.