Answer:
the probability that he length of this component is between 4.98 and 5.02 cm is 0.682 (68.2%)
Step-by-step explanation:
Since the random variable X= length of component chosen at random , is normally distributed, we can define the following standardized normal variable Z:
Z= (X- μ)/σ
where μ= mean of X , σ= standard deviation of X
for a length between 4.98 cm and 5.02 cm , then
Z₁= (X₁- μ)/σ = (4.98 cm - 5 cm)/0.02 cm = -1
Z₂= (X₂- μ)/σ = (5.02 cm - 5 cm)/0.02 cm = 1
therefore the probability that the length is between 4.98 cm and 5.02 cm is
P( 4.98 cm ≤X≤5.02 cm)=P( -1 ≤Z≤ 1) = P(Z≤1) - P(Z≤-1)
from standard normal distribution tables we find that
P( 4.98 cm ≤X≤5.02 cm) = P(Z≤1) - P(Z≤-1) = 0.841 - 0.159 = 0.682 (68.2%)
therefore the probability that he length of this component is between 4.98 and 5.02 cm is 0.682 (68.2%)
I think it is a because it shows us the points that the students made. I also think it is d. But I think it is mainly a.
-Dhruva;)
We can put it in a fraction. The last number behind the decimal it in the thousandths place so put 5745 over 1000. ANSWER: 5745/1000. Now it simplifies to 1149/200 but can be put into mixes number form and it will be. 5 and 149/200
Answer:
Thats what he ate
Step-by-step explanation:
For the first question, it would be D:
÷ 9. This is because to solve a division problem with fractions, you would need to multiply the first fraction by the reciprocal of the second fraction. For the second question, the answer would be D: 32. This can be solved by dividing 8 by
or 0.25. For the third question, it would be D.
. This can be solved by dividing
by 3. For the fourth question, the answer would be
. This can be found by flipping the 4, which would make it look like
, and multiplying it by
. For the last question, 1 would be B, 2 would be C, 3 would be C, and 4 would be A.
Hope this helps ^-^