Answer:
10 goes over 2 and 5 goes under 25
Answer:
2
Step-by-step explanation:
29 % 3 = 9
3x9 = 27
29 - 27 = 2
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Question:
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6 - (-8) = 6 + 8 = 14
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Options :
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A) -6 + 8 = 2
B) - 6 + - 8 =-6 - 8 . = -14
C) 6 + -8 = 6 - 8 = -2
D) 6 + 8 = 14 (Answer)
Answer:
A) P(Z > 5000) = 0.0322
B) P( Y = 2 or 3) ≅ 0.9032
Step-by-step explanation:
From the given information;
Suppose the sales for the first week are denoted by X and the sales for the second week are denoted by Y.
Then;
X & Y are independent and they follow a normal distribution.
i.e.
If we set Z to be equal to X+Y
Then, since two normal distribution appears normal
So;
From the Z - tables;
P(Z > 5000) = 1 - 0.9678
P(Z > 5000) = 0.0322
B)
Let Y be the random variable that obeys the Binomial distribution.
Y represents the numbers of weeks in the next 3 weeks where the gross weekly sales exceed $2000
Thus;
where;
p = 1 - P( Z < - 0.869565)
From the Z - tables;
p = 1 - 0.1924
p = 0.8076
Now;
P(Y ≥ 2) = P(Y = 2) + P( Y =3 )
Using the formula
P( Y = 2 or 3) = 0.9031911541
P( Y = 2 or 3) ≅ 0.9032
Area formula is = lx b
Whete we lnow area and width so
We can easily find out length
20.5 = 2.5 × l
l = 20.5 / 2.5
Length = 8.2 cm answer
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