Which simplified fraction is equal to 0.17 (7 is repeating)
1 answer:
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Answer:
a) Mean=0 and Standard deviation=1
b) The z-scores have no units of measurement
Step-by-step explanation:
When we convert all the pulse rates of women to z-scores using the formula;
the mean is 0 and the standard deviation is 1.
The reason is that, the resulting distribution of z-scores forms a normal distribution which has a mean of 0 and a standard deviation of 1.
b) The z-scores are standardize scores and has no units of measurement. They give us how many standard deviations below or above the mean of the corresponding values.
Each van carried 18 students and each bus carried 59 students.
Step-by-step explanation:
Let,
students carried by one van = x
students carried by one bus = y
According to given statement;
x+6y=372 Eqn 1
4x+12y=780 Eqn 2
Multiplying Eqn 1 by 4
Subtracting Eqn 2 from Eqn 3
Dividing both sides by 12
Putting y=59 in Eqn 1
Each van carried 18 students and each bus carried 59 students.
Keywords: Linear equations, subtraction
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