Answer:
Set Y has the smaller mean. Mean means average.
Step-by-step explanation:
Set X: 20.45+28+22.25+16.5+13+18.05=118.25 divide that by 6. 118.25/6= 19.71
Set Y: 21+6+5+24+9+40= 95 divide that by 6. 95/6= 15.83
Step-by-step explanation:
..........MaRk As BrAiNeSt
Answer:
5) 13% 7) 3/28
Step-by-step explanation:
<u>5)</u>
total number of marbles: 2 + 3 + 5 + 1 + 2 + 2 = 15 marbles.
probability its blue:
__in fraction
in percentage:
* 100 = 13%
<u>7)</u>
total number of marbles: 4 + 5 + 2 + 9 + 1 = 21
probability of selecting a red marble: 5/21
then 1 marbles is reduced as not replaced.
total marbles: 21 - 1 = 20
probability of getting orange marble: 9/20
total probability: 9/20 * 5/21 = 3/28
Answer:

Step-by-step explanation:
Sum the frequency column to find the total number of students
total = 2 + 9 + 5 + 5 + 3 = 24
number of students finished in less than 20 mins = 2 + 9 + 5 = 16
fraction of students =
= 
Determine if the given sequence represents a geometric sequence If so, find the common ratio.
3, 9, 27, 81
Answer: 3