19-7 equals 12. 12 times -6=-72. Sara’s number is 7
Answer:
Probability that a randomly selected woman's gestation period will be between 261 and 279 days is 0.68.
Step-by-step explanation:
We are given that the average human gestation period is 270 days with a standard deviation of 9 days. The period is normally distributed.
Firstly, Let X = women's gestation period
The z score probability distribution for is given by;
Z =
~ N(0,1)
where,
= average gestation period = 270 days
= standard deviation = 9 days
Probability that a randomly selected woman's gestation period will be between 261 and 279 days is given by = P(261 < X < 279) = P(X < 279) - P(X
261)
P(X < 279) = P(
<
) = P(Z < 1) = 0.84134
P(X
261) = P(
) = P(Z
-1) = 1 - P(Z < 1)
= 1 - 0.84134 = 0.15866
<em>Therefore, P(261 < X < 279) = 0.84134 - 0.15866 = 0.68</em>
Hence, probability that a randomly selected woman's gestation period will be between 261 and 279 days is 0.68.
<h2>
Answer: </h2>
formula = Multiply mass with 1000.
weight of a pack of oranges = 7.4 kg
weight of the pack of oranges in grams = 7.4 x 1000 = 7,400g
<h2><u>
Weight of the pack of oranges in grams is 7,400g</u></h2>
J is a fraction
Rock weighing 202 pounds on earth weighs 201j pounds on the moon.
15/ 100
To simplify divide both by 5
15/100 / 5 = 3/20