Answer:
A. 0.3204 B. $14.669
Explanation:
Mean = 8.9 SD = 4.5
Required probability = P (X >/= 550/50)
P(X>/=11) = 1 - P[(X - mean/SD) < (11 - mean)/SD]
= 1 - P(Z < (11-8.9)/4.5)
P(X>/=11) = 1 - P(Z < 0.4666667)
Using Excel NORMDIST(0.4666667,0,1,1)
P(X>/=11) = 1 - 0.6796 = 0.3204
The probability that she will earn at least $550 = 0.3204
b. P
(
X > x
) = 0.10
1 − P
(
X − mean)/SD ≤ (x − mean)
/SD = 0.10
P
(
Z ≤ z
) = 0.90
Where,
z = (x − mean
)/SD
Excel function for the value of z:
=NORMSINV(0.9)
=1.282
Hence (x - mean)/SD = 1.282
= (x - 8.9)/4.5 = 1.282
x = (1.282*4.5) + 8.9
x = 14.669
He earns $14.669 on the best 10% of such weekends.
Answer:
Explanation:
Games on school property redirect the attention of the students to the games, instead of learning. They cause further disobedience and will often be snuck out to play during class. The students will be distracted and will not learn anything from the time spent in school.
Answer:
By how they work and how they are in their field
Answer:
a movement up and to the right along the supply curve for oranges.
Explanation:
The supply curve exhibits the price and quantity.
Quantity on the x axis that reflects the quantity supplied.
Price on the y axis that reflects the price at which the particular commodity is offered.
Accordingly, when there is increase in prices of orange the y axis will move upward, also as there is increase in price the suppliers would supply more at the price, accordingly x axis will also grow.
Accordingly the supply graph will move upward in the right direction.
Overall, the most effective and efficient analgesics are the narcotics. Narcotics are analgesic compounds that have sleep-inducing properties.They are referred to as opiates and opioid analgesics, because of their opatic property. Narcotics result in p<span>ain relief, narcosis and addiction (physical dependence on the drug).</span>
