Measures of central tendency
what is the mean:4,7,12,10,2,
7
34,56,16,39,10,52 what is the range
46
There are fifteen marbles in a bag.
9 are yellow
3 are purple
3 are red
What is the probability of choosing a yellow marble?
9/15 or 3/5
What is the lowest prime number?
two
What is the mode?
12,5,18,10,12,14,17,
12,13,11,45
12
35% of _______ is 280
800
What is the probability of rolling a six sided die and landing on an even number?
1/2
Is 51 prime or composite?
Composite. 51=3x17
What is the mean?
12,3,7,10,23,39,2,4
12.5
A machine can fill 650 bottles in 25 minutes. What is the unit rate at which the machine can fill bottles?
26 bottles per minute
What is the probability of pulling spade within a 52 deck of cars?
13/52 or 1/4
Find the reciprocal of 3
What is 1/3
What is the median?
61,42,73,98,102,67
70
Which has a greater probability
Rolling doubles on two six-sided dice or rolling doubles on two ten-sided dice?
p(doubles on six-sided) =1/6
which is more likely than
p(doubles on ten-sided) = 1/10
What is more likely to happen? Pulling a red card from a deck of cards or rolling a 1 or a 2 on a six sided die?
pulling a red card from six sided die 1/2
Is the question "How many minutes did it take you to get to school today?" a statistical question?
No -- The question only asks one person about their time .
"How many minutes does it take FSS families to get to school?" would be considered statistical.
What is the median?
5,8,14,45,72,198
29.5
George earns $3,400 each month. He pays 25% of his earnings on rent and 30% of the remainder for transportation. How much does he pay for transportation?
$765
If you roll two six-sided dice, what is the probability of rolling a product of six?
15/36 or about 41.7%
The branch of math that deals with collecting, organizing, and interpreting data
What is 'statistics'