Roberto will roll a number cube and flip a coin. The faces of the number cube are labeled 1 through 6. The coin can land on head
1 answer:
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Answer:
The score of 92 on a test with a mean of 71 and a standard deviation of 15 is better.
Step-by-step explanation:
To find which score corresponds to the higher relative position, we find the Z-score of each score.
The z-score, which measures how many standard deviation a measure is above or below the mean, is given by the following formula:
In which X is the score, is the mean and
is the standard deviation.
A score of 92 on a test with a mean of 71 and a standard deviation of 15.
So
A score of 688 on a test with a mean of 493 and a standard deviation of 150.
So
Which is better?
Due to the higher z-score, the score of 92 on a test with a mean of 71 and a standard deviation of 15 is better.
Answer:
= 3n - 1
Step-by-step explanation:
Note there is a common difference d between consecutive terms in the sequence, that is
5 - 2 = 8 - 5 = 11 - 8 = 14 - 11 = 3
This indicates the sequence is arithmetic with n th term
= a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = 2 and d = 3, thus
= 2 + 3(n - 1) = 2 + 3n - 3 = 3n - 1
Answer:
x = 2
Step-by-step explanation:
Those lines will come together and interact at (2 , 5)
