Answer:
see below
Step-by-step explanation:
A can speak french
There are 10 students who can speak french, 4 girls and 6 boys
P(french) = speak french/ total
= 10/30
= 1/3
B is a boy
There are 16 boys
P (boy) = boys/total
= 16/30
8/15
C girl who can speak french
There are 4 girls who can speak french
P (girl who can speak french) = girl who can speak french/ total
=4/30
2/15
Answer:
Teachers in his school district have less than 5 yearſ of experience on average is true.
Step-by-step explanation:
Sample mean =
Sample standard deviation = s = 2
We are supposed to to test Ha :u= 5 versus H : u < 5 using a sample of 25 teachers
n = 25
Since n<30 and population standard deviation is unknown
So, we will use t test
Formula :
t=-2.5
Degree of freedom = n-1 = 25-1 = 24
Refer the t table
t critical > t calculated
So, We are failed to reject null hypothesis
So, teachers in his school district have less than 5 yearſ of experience on average is true.
Hello! Your answer was 19! There is no possible way for me to show you how to work this out using base ten blocks! Hopefully you can work it out in your head next time! :)
Answer:
252 inches squared is the answer
Step-by-step explanation:
Answer:
b) 822.42
Step-by-step explanation:
Just multiply 2.7 by 304.6 and your answer would be 822.42