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EOC Review Mini Mock B
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A set of nine data points is shown below. 45, 56, 52, 39, 60, 48, 42, 57,50 Which statement is true if a tenth data point of 20 is added to the data set?
D. The mean and median will both decrease
A company models its net income with the function f(t) = 8t^2 + 56t - 144 where t is the number of units of its product sold. How many units of its product does the company need to sell to make the net income equal 0
2 products or (2,0)
If the weight of the Polar Bear was removed, what happens to the mean? Look at the table below.
The mean will decrease
Does the data set become Skew Left, Skew Right, or Symmetrical when the new ACT score is added?
Skew Right
A statistician collected the following data to explore the relationship between two variables, x and y. Answer the question below.
B. (3.6, 34)
Answer the following question regarding correlation coefficients and relationships.
a. There is a strong relationship showing that as the number of days increases, the height of the apple trees increases.
What is the value of x in the equation shown below?                       3(x – 4) = 2(–2x + 1)
x = 2
What is the value of x in the equation shown below?                             2(x + 8) – 4x = 10x + 4
x = 1
Solve for n:                                              pv=nRT
n = pv/RT
The function f(x) = –0.25x + 5 models the height of a candle x seconds after it is lit. What is the meaning of the y-intercept of the function?
A) the initial height of the candle
What expression is equivalent to (x+2)(4x-4)
4x^2 + 4x - 8