Answer:
∠ WXY = 59°
Step-by-step explanation:
The sum of the 3 arcs in the circle = 360°, thus
arc WY = 360° - (156 + 86)° = 360° - 242° = 118°
The measure of the inscribed angle WXY is one half the measure of its intercepted arc, thus
∠ WXY = 0.5 × 118° = 59°
From all those aforementioned, the true statement is: Thanh’s grade is 2.5 standard deviations below the mean of the test grades.
Answer:
19 over 2
19
2
or
19/2
Hope this helps
Step-by-step explanation:
Answer:
0
Step-by-step explanation:
Let X to be a random variable that looks a binomial distribution which denoted the number of employees out of the 281 who earn the prevailing minimum wage or less
The sample size n = 281
The population parameter p = 5% = 0.05
Using normal approximation for the mean.



The standard deviation is:





By using continuity correction; the sample mean x is:
x = 30 - 0.5
x = 29.5
The z statistic test can now be as follows:



Z = 4.23
Thus, the probability that company A will get a discount is
P(X ≥ 30) = P(Z >4.23)
= 1 - P(Z < 4.23)
By using the Excel function for the z score 4.23 i.e. "=1 - NORMSDIST(4.23)" we get;
= 0.0000
Scientific notation is usually written in powers of tens, in this case: