If all the values from my sample are doubled,

the mean and the SD will double.

What transformations map from the function y = x2 to y = - x2 + 6?

Vertical reflection, translation of 6 up.

What transformations map from the function y = x2 to y = 3(x - 2)2?

Translation of 2 to the right, vertical stretch of factor 3.

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IB DP Maths SL Functions, Sequences and Statistics

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A #maths quiz for #grade11 SL students covering Functions, Sequences & Series, Binomial Expansion, Probability, Statistics

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Questions 18

Answers

1
What are the solutions to x² - x - 20?
x = 5 and x = 4
x = -5 and x = 4
There are no solutions.
x = 5 and x = -4
2
If f(x) = 3x - 2, what is the inverse of f?
(x + 3)/2
x + 2/3
3x + 2
(x + 2)/3
3
What is the mode of this set of data?
There is no mode.
2 and 3
2
3
4
What is the IQR for the length of female fish?
20
12
10
14
5
What is n(AnB)?
3
3/12
3/21
3/15
6
What is the fifteenth term in the sequence 0.75, -1.5, 3, -6, ... ?
-6,144
12,288
6,144
-24,576
7
If all the values from my sample are doubled,
Neither the mean nor the SD will change.
the SD will double but the mean will remain constant.
the mean and the SD will double.
the mean will double but the SD will remain constant.
8
How can I find nCr?
n!/(r!⋅(n-r)!)
n!/r!
n/(r!⋅(n-r)!)
n!/(n!⋅(n-r)!)
9
How many different groups of 3 students could be chosen from a class of 21?
7980
1330
63
7
10
What is the probability of flipping a coin three times and it landing on heads all three times?
3/8
1/8
1/3
1/18
11
Find the solution for the following summation.
110
900
-300
300
12
What are the solutions of x² - 13x + 30 = 0
There are no solutions.
x = -10 and x = 3
x = -10 and x = -3
x = 10 and x = 3
13
What transformations map from the function y = x² to y = - x² + 6?
Vertical reflection, translation of 6 down.
Horizontal reflection, translation of 6 down.
Vertical reflection, translation of 6 up.
Horizontal reflection, translation of 6 up.
14
What is the constant term in the expansion of (3x - 2)⁵?
10
32
-32
-10
15
What is the vertical asymptote of the function, y = (x + 3)/(7 - x)?
y = 7
x = 7
x = -7
x = -3
16
What transformations map from the function y = x² to y = 3(x - 2)²?
Translation of 2 to the left, vertical stretch of factor 3.
Translation of 2 to the right, vertical stretch of factor 3.
Translation of 2 to the right, horizontal stretch of factor3
Translation of 2 to the left, horizontal stretch of factor 3
17
What must be true for a geometric sequence to have a real sum to infinity?
|r| > 1
r > 1
r < 1
|r| < 1
18
What is the horizontal asymptote of the function, y = (x + 3)/(7 - x)?
y = 3/7
y = 1
y = -1
y = -3/7

IB DP Maths SL Functions, Sequences and Statistics Flashcards | StudBud