Answer:
The probability that there is at least one pair but not a three of a kind is 0.6944.
Step-by-step explanation:
We have the case when we have five dices and we roll them and we need that there is at least one pair but not a three of a king which is Two dice showing the same value, but no three dice showing the value.
Total no of outcomes = 
We will consider the other cases and then subtract them from the total outcomes.
No of outcomes of 5 of a kind = 6
No of outcomes 4 of a kind and 1 different = (6*5)*5 = 150
No of outcomes with 3 of a kind and 1 different pairs = (6*1*1*5*1)*5C2= 300
No of outcomes with 3 of a kind and two different = 6*5*4*10= 120*10=1200
No of outcomes when all are different = 6! = 720
These all the cases when subtracted from the total will represent the total cases in which there are two dice showing the same value.
Total cases = 6+150+300+1200+720
= 2376
Required no of outcomes = 7776-2376 = 5400
Probability =
= 0.6944
Therefore the probability for the case of at least one pair but not a three of a kind is 0.6944.
Answer:
so density is measured in grams per cm³
but the data we have is grams and mL, but lucky for us, we can easily convert mL to cm³ but it is a bit tricky.
so you have to multiply the amount in mL by e and divide by 
which means that you have to multiply by 1, (hard,i know)
so now you know that the given liquid is 6 grams per 24 cm³
so now, we will divide the amount in grams by the volume in cm³
6/24
= 1/4 grams per cm³
1 sheet can contain 3 drawings. So 7 x 3 = 21.
21 drawings in total.
The slope is -4.500
Hope this helped :)