The LCD of these fractions is 60!
The sum of these fractions is
!
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When it comes to sampling methods, random sampling is one of the most effective. The principal wants the results of his or her sample to be as fair as possible, so it is best to choose students randomly, and in a neutral environment. The mall is not a neutral environment because not all students have access to the mall, and even those who do are not guaranteed to provide accurate results. The same goes for a basketball game, and student council. Samples taken from these environments are likely to produce more bias. However, collecting a survey from every tenth student entering the school one morning is more likely to produce accurate results that are representative of the school population.
Four types of data (nominal, ordinal, interval, and ratio) that represent values or observations that can be sorted into a category
Answer:
√75, 9, 9.5, √99, 10
Step-by-step explanation:
that's what I got
Answer:
The speed of the cyclist is 10 miles per hour .
Step-by-step explanation:
Given as :
The distance cover by cyclist =
= 20 miles
The distance cover by biker =
= 6 miles
The speed of biker =
= s mph
The speed of cyclist =
= 7 + s mph
The time taken by both cyclist and biker = t hour
Now. Distance = Speed × Time
So,
=
× t
Or, 20 = s × t
Or, t =
.....1
And ,
=
× t
or, 6 = s t
Or, t =
....2
From Eq 1 and 2
I.e
=
Or, 20 s = 6 ( 7 + s )
Or, 20 s - 6 s = 42
Or, 14 s = 42
∴ s = 
I,e s = 3 miles per hour
So, The speed of biker =
= s = 3 miles per hour
And The speed of cyclist =
= 7 + s = 7 + 3= 10 miles per hour
Hence The speed of the cyclist is 10 miles per hour . Answer