Im pretty sure the answer would be the fourth one. because a greater than or equal to. is a solid dot and just greater than is just a circle. and it get higher. so That is what im thinking the answer would be.
Hope this helps.
What you want to do is add the probabilities up and divide by how many there are so it will be 0.4+1.8+0.2-0.8/4
Which is 0.35
Answer:
-28
Step-by-step explanation:
2(x-5) = 3(x+6)
Solve for x by first distributing
2x-10=3x+18
Subtract 2x to both side to get x by itself
-10 = x +18
<em> x = -28</em>
Answer: a) 0.0058
b) 0.0026
Step-by-step explanation:
Given : The probability of having clear sunny skies in Seattle in July : p= 0.40
The number of days spent in Seattle in July: n= 18
a) Using, Binomial probability formula : 
The probability of having clear sunny skies on at least 13 of those days:-




b) On converting binomial to normal distribution, we have

Let x be the number of days having clear sunny skies in Seattle in July.
Then, using
we have

P-value = 

It's No, because group D should be the control group. A control group means a group that doesn't receive the treatment so the two can be compared.