Answer:
second one
Step-by-step explanation:
am pretty sure
Answer:
Step-by-step explanation:
d
Answer:
i think you got that right its negative
Step-by-step explanation:
The standard deviation for the combined assignment is 5 minutes.
To combine the standard deviations, we use:

With our information, we have:
Answer:
7/15
Step-by-step explanation:
7+8=15
there's 7 girls so you have 7/15 chance of getting a girl