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:
Step-by-step explanation:
Given
Required
Determine CD
Since, C is a point on BD, the relationship between the given parameters is;
Substitute the values of BD, BC and CD
Collect Like Terms
Divide both sides by -4
To determine the length of CD;
Substitute 3 for x in
Hence;