Apps SL Review

Question 1

When should you reject H0?

Accepted Answer

If p < significance level, Χ2calc > Χ2critical

Question 2

Solve the quadratics by factoring

Accepted Answer

x = 1, x = -3

Question 3

Answer the question

Accepted Answer

86.6 ft

Question 4

What is the ratio that yields the cosine of an angle in a right triangle?

Accepted Answer

adjacent side/hypotenuse

Question 5

Quadratics!

Accepted Answer

y = 5(x+2)2-27

Question 6

When is Median more reliable than Mean?

Accepted Answer

When the distribution has a lot of extreme outliers

Question 7

Answer the question

Accepted Answer

525

Question 8

If there are 6 genres of music and 4 grade levels, how many degrees of freedom for a Χ2 test?

Accepted Answer

15

Question 9

When given 3 sides of a triangle, how can you find an angle?

Accepted Answer

Law of Cosines

Question 10

Calculate the median

Accepted Answer

32

Question 11

Answer the question

Accepted Answer

13

Question 12

What is the gradient of the line perpendicular to 2x + 3y = 6?

Accepted Answer

3/2

Question 13

Germs on a mouse can be modeled by 140 (1.5)x, how many germs were initially on the mouse?

Accepted Answer

140

Question 14

1,1,2,3,5,8,13,... is an example of:

Accepted Answer

niether

Question 15

Answer the question

Accepted Answer

15o

Question 16

When given a table with some data and its frequency, which should you use to calculate mean?

Accepted Answer

1-var stats

Question 17

If r = -.965, you could state that the correlation was:

Accepted Answer

strong, negative

Question 18

What is the volume of a sphere with radius 102 written in scientific notation?

Accepted Answer

4.45 x 106

Questions 18