Answer:
Step-by-step explanation:
lets do 3/7.
3.0/7 is .4 and .2
.20/7 is .14 and 6/7
.4+.14 is .54
but with 6/7 hundredth you add 1 more
so .55
Answer:
the probability that a sample of the 35 exams will have a mean score of 518 or more is <em> 0.934 </em>or<em> 93.4%</em>.
Step-by-step explanation:
This is s z-test because we have been given a sample that is large (greater than 30) and also a standard deviation. The z-test compares sample results and normal distributions. Therefore, the z-statistic is:
(520 - 518) / (180/√35)
= 0.0657
Therefore, the probability is:
P(X ≥ 0.0657) = 1 - P(X < 0.0657)
where
- X is the value to be standardised
Thus,
P(X ≥ 0.0657) = 1 - (520 - 518) / (180/√35)
= 1 - 0.0657
= 0.934
Therefore, the probability that a sample of the 35 exams will have a mean score of 518 or more is <em>0.934 or 93.4%</em>.
Answer:
x<9
Step-by-step explanation:
-5(x-1) > -40 ---> divide each side by -5(you flip the inequality because of dividing by negative)
(x-1)<8 ---> add 1 to each side
x<9
Answer:
The given statement:
Sunk relief consisted of cutting an image into a flat surface is a TRUE Statement.
Step-by-step explanation:
Sunken Relief--
Sunken relief is a technique of relief sculpture in which figures or images are carved in low relief, but set within a sunken area, so that the relief never rises beyond the original flat surface.
This technique was restricted to ancient Egypt.
Hence, the given statement is a true statement.
Answer:
9
Step-by-step explanation:
2,3,4,7,7,7,9,9,14,17,21
21,17,14,9,9,7,7,7,4,3,2
3,7,7,7,9,9,17,21