Mathematics competition B

1) Find the size of the missing angle

• 55 degrees
• 90 degrees
• 125 degrees
• 305 degrees

2) Calculate angle x of this isosceles triangle.

• 180 degrees
• 52 degrees
• 26 degrees
• 128 degrees

3) Jennifer has six grades from tests and IXL. They are all weighted equally. If Jennifer's grades are 100, 96, 96, 88, 70, and 100, what is the current average grade? (Round to the nearest whole number)

• 90
• 91
• 92
• 93

4) The mode score on the 6th grade math test was 94! Which of these interpretations must be correct?

• 99 was the highest score on the test.
• More students 94 than any other score
• No student scored below a 50
• A score of 91 was slightly below average.

5) Morire had test scores of: 94, 94, 94 and 94. What is the RANGE of her test scores?

• 12
• 94
• 0
• no range

6) Find the mean.18, 2, 0, 0, 0

• 4
• 5
• 10
• 20

7) The scores awarded to 25 students for an assignment were as follows:4 7 5 9 8 6 7 7 8 5 6 9 8 5 8 7 4 7 3 6 8 9 7 6 9. What is the mode?

• 6
• 7
• 8
• 9

8) The number of miles that John cycled each week for a 7-week period is shown: 36, 42, 28, 52, 48, 36, 31 What is the median number of miles John cycled?

• 24
• 36
• 39
• 52

9) How likely that I will land on yellow space?

• certain
• unlikely
• likely
• impossible

10) A bag has 3 red marbles, 2 blue and 4 yellow. What is the probability of pulling a red?

• certain
• impossible
• unlikely
• equally likely