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Elina [12.6K]
2 years ago
7

Identifying a Valid Sample Natasha wants to find out if the neighborhood supports lowering the speed limit on the street in fron

t of her school. Which is a valid sample for the survey? students in Natasha’s social studies class parents who live in a town 15 miles away from Natasha’s school the first 5 drivers who drive past Natasha’s school one morning thirty residentsIdentifying a Valid Sample Natasha wants to find out if the neighborhood supports lowering the speed limit on the street in front of her school. Which is a valid sample for the survey?
A. students in Natasha’s social studies class parents who live in a town 15 miles
B.away from Natasha’s school the first 5 drivers who drive past Natasha’s C.school one morning thirty residents who live within a 2-miles radius of D.Natasha’s school who live within a 2-miles radius of Natasha’s school
Mathematics
2 answers:
nekit [7.7K]2 years ago
7 0

D - Thirty Residents Who Live Within a 2-Miles Radius Of Natasha’s School

blsea [12.9K]2 years ago
3 0

Answer:

thirty residents who live within a 2-miles radius of Natasha’s school

Step-by-step explanation:

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What is the median of these numbers 2.4,2.8,2.3,2.9,2.9
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Answer:

2.8

Step-by-step explanation:

x2.3, x2.4, 2.8, x2.9, x2.9

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1 year ago
A cube with a side 1 m long has been cut into cubes of a side 1 dm each. all small cubes have been put one on top of the other,
Ivenika [448]
First, we have to find how many small cubes formed by the large cube.
To find the number of small cubes, we should calculate the volume of each large cube and small cube. Equalize the volume units to dm³

Dimension of large cube
s = 1 m
s = 10 dm

Volume of large cube
v = s³
v = 10³
v = 1,000 dm³

Dimension of small cube
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Second, calculate the number of small cubes formed
n = volume of large cube / volume of small cube
n = 1,000 dm³ / 1 dm³
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There are 1,000 small cubes.

Third, calculate the height of the structure.
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8 0
2 years ago
Below is the five Number summary for a 136 hikers who recently completed the John muir trail JMT the variable is the amount of t
Helga [31]

Answer:

IQR = Q_3 -Q_1 = 28-18 = 10

Now we can find the limits in order to determine outliers like this:

Left = Q_1 -1.5 IQR = 18 -1.5*10=3

Right = Q_1 +1.5 IQR = 18 +1.5*10=33

So for this case the left boundary would be 3, if a value is lower than 3 we consider this observation as an outlier

b. 3

Step-by-step explanation:

For this case we have the following summary:

Minimum = 9 represent the minimum value

Q_1 = 18 represent the first quartile

Median =Q_2= 21 represent the median

Q_3 = 28 represent the third quartil

Maximum=56 represent the maximum

If we use the 1.5 IQR we need to find first the interquartile range defined as:

IQR = Q_3 -Q_1 = 28-18 = 10

Now we can find the limits in order to determine outliers like this:

Left = Q_1 -1.5 IQR = 18 -1.5*10=3

Right = Q_1 +1.5 IQR = 18 +1.5*10=33

So for this case the left boundary would be 3, if a value is lower than 3 we consider this observation as an outlier

b. 3

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