add all amd divide by the 40 ???let me know if im wrong
The distribution is not a standard normal distribution.
We know that the variable (X) usually obeys and follows a standard normal distribution provided that the summation of (X) is zero and the variance of the random variable V(X) = 1.
Mathematically:
E(X) = 0 and V(X) = 1
Given that;
- the mean which follows a normal distribution (X) = 4.5338 g, and
- the standard deviation SD(X) = 0.1039 g
As such, the distribution is not a standard normal distribution.
Therefore, we can conclude that the distribution is not a standard normal distribution.
Learn more about standard normal distribution here:
brainly.com/question/11876263?referrer=searchResults
Answer:
-7
Step-by-step explanation:
Given data
Tina's problem is
-16 - (-9)
Firstly let her open up the bracket
Note - * -= +
-16+9
Secondly, Rearrange
9-16= -7
Hence the answer is -7
Answer:
Total score = 39 points
Step-by-step explanation:
For each correct question, you get 2 points, and there are 22 correct questions, so:
22 * 2 = 44 points.
For each question left blank, you get 0 points, and there are 7 questions left blank, so:
7 * 0 = 0 points
For each incorrect question, you get -1 point, and there are 5 incorrect questions, so:
5 * (-1) = -5 points.
The total number of points is:
Score = 22*2 + 7*0 + 5*(-1) = 44 + 0 - 5 = 39 points
