Answer:
Step-by-step explanation:
Since your population are the students in math class, you can use the z-score formula 
in order to comparing the two math test scores. Where 
is the mean for the class, 
is the standars deviation and x is Mary score.
For the first test 
, so ,
.
For the second test 
, so ,
Mary do better in the second test, relative to the rest of the class (because 
, it means the second score is nearer to the mean score of the class than the first one )
Answer:
= 
To find equivalent fractions, multiply be any number that is the same for the numerator/denominator
You can also divide, but it must be divisible by both the numerator/denominator
Answer:
1, 2, 3, 5
Step-by-step explanation:
I took the quiz
There are 3³ possibilities for playing 3 rounds in rock paper scissors (3 choices in every round).
Draw a tree diagram of every round and (assuming that the three choices can be played in an random order as long as they are different), the options are 6.
P(RPS)=6/27=0.22
Hope I helped :)
Here ya go have a great day!
