Statistics
Calculate the mean (average) of the following set of numbers: 12, 15, 10, 20, 18.
17.6
6-b<8-4b
B<2/3
If it takes 4 hours to drive 200 miles, how many hours would it take to drive 300 miles at the same speed?
300
You purchased a shirt for $25. If there is a 20% discount, how much will you pay?
20$
What is the probability of rolling a 3 on a fair six-sided die?
the probability of rolling a 3 is 1/6
Find the median of the following set of numbers: 9, 8, 5, 17, 12, 15.
12
3(y+5)≤2(y+1)
y≤-13
A recipe requires 2 cups of flour to make 12 cookies. How many cups of flour would you need to make 24 cookies?
4 cups of flour to make 24 cookies
You want to buy a new video game that costs $60. If you have a $20 coupon, what is the final price?
40$
If you have a bag containing 5 red marbles, 3 blue marbles, and 2 green marbles, what is the probability of randomly selecting a blue marble?
the probability is 3/10
Calculate the range of the following set of numbers: 5, 7, 2, 13, 10, 15.
15
-10x+6
74
A car travels 180 miles in 3 hours. How many miles would the car travel in 5 hours at the same speed?
300 miles in 5 hours at the same speed
You have a monthly budget of $500. If you spend $150 on groceries and $75 on transportation, how much money is left?
$275
A box contains 10 socks, 4 of which are black and 6 are white. If you randomly select two socks without replacement, what is the probability that both socks are black?
2/15
Find the mode(s) of the following set of numbers: 3, 5, 2, 6, 5, 8, 5, 3, 9.
9
3x+4=7x−2
X=1.5
A machine can produce 8 widgets in 2 hours. How many widgets can the machine produce in 6 hours at the same rate?
24 widgets in 6 hours at the same rate
You receive a paycheck of $750. If you allocate 30% for savings and 20% for bills, how much money is left for spending?
$375
You have a standard deck of 52 playing cards. What is the probability of drawing a heart or a diamond card?
1/2
Given the following data set: 15, 4, 5, 3, 6, 8, 9, 12, 10, 5, find the interquartile range.
4.17
4(x+1/2)-2(x+3/2)≤5
x≤3
A 10-foot tall tree casts a shadow that is 8 feet long. If a building casts a shadow that is 40 feet long, how tall is the building?
50 feet tall
You want to buy a laptop that costs $900. The sales tax rate is 8%. How much will you pay in total, including tax?
$972
In a jar, there are 20 jelly beans: 8 are red, 6 are green, and 6 are yellow. If you randomly select 5 jelly beans without replacement, what is the probability of getting exactly 3 red jelly beans?
28/33