5x-2y=3 y=2x This is a substitution method worksheet
1 answer:
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Answer:
And we can find the probability with this difference:
And using the normal standard table or excel we got:
And the best answer would be:
0.3811
Step-by-step explanation:
Let X the random variable that represent the ratings of a population, and for this case we know the distribution for X is given by:
Where and
We are interested on this probability
And the best way to solve this problem is using the normal standard distribution and the z score given by:
Using the z score we got:
And we can find the probability with this difference:
And using the normal standard table or excel we got:
And the best answer would be:
0.3811
Answer:
= 84/177100
Step-by-step explanation:
Here 9 mid sized
16 compact cars
selected = 6
= 84/177100
for 3 mid sized
3 compact cars
then
3Cx/9Cx
divide by 3 we get
Cx/3Cxtaking Cx coomon
it become Cx =1/3 hence the probability is 1/3