What is the first quartile (Q1) of the data set?
2 answers:
Answer:
A ) First quartile (Q1): 48.5.
Step-by-step explanation:
Given : 51, 42, 46, 53, 66, 70, 90, 70 .
To find : What is the first quartile (Q1) of the data set?
Solution : We have given 51, 42, 46, 53, 66, 70, 90, 70 .
Arrange the data least to greatest
42 ,46, 51, 53, 66, 70, 70, 90.
First half is 42 ,46, 51, 53,
Second half is 66, 70, 70, 90.
First quartile (Q1): .
First quartile (Q1): .
First quartile (Q1): 48.5
Therefore, A ) First quartile (Q1): 48.5.
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Answer:
d= -5
Step-by-step explanation:
The slope of a line is found by finding the ratio of change is y values to change is x values
The points on the line have coordinates at: (-1,7) (-3,d)
where ;
Applying the formula with values as;
The value of d = -5
The coordinates of the points (-1,7) (-3,-5)