What are the steps to find the lower and upper quartiles in a data set

Mathematics

1 answer:

Minchanka [31]3 years ago

8 0

Answer:

The steps to finding the upper and lower quartiles are given in the first choice.

1. Order the data from least to greatest. If you don't do this, the data is random.

2. Find the median - you will do this so that you can find the midpoint of the data set (half of of the data is smaller and half of the data is larger).

3. Find the lower quartile - this is the half of the lower half of numbers; think of it as breaking the lower half of the data into 2 sections.

4. Find the upper quartile - this is the half of the greater half of numbers; this will break the upper half of the data into 2 sections.

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Footballs sell for $27.99 each at Dicks Sporting Goods and $21.59 each at Big 5. If the coach buys a dozen footballs, how much c

klasskru [66]

Answer:

The money he can save by buying them at Big 5 is $76.80.

Step-by-step explanation:

Given:

Footballs sell for $27.99 each at Sporting Goods.

Footballs sell for $21.59 each at Big 5.

The coach buys a dozen footballs.

Now, to find the amount he save by buying them at Big 5.

So, first we find the cost of footballs at Sporting Goods and at Big 5.

1 Dozen = 12 pieces.

Thus, the cost of footballs at Sporting Goods =

$\$27.99\times 12 =\$335.88$

And, the cost of footballs at Big 5 =

$\$21.59\times 12=\$259.08.$

Now, to get the amount coach can save by buying them at Big 5, we subtract both the cost as the cost of Sporting Goods is more than the Cost of Big 5:

The amount coach can save by buying them at Big 5 =

$\$335.88-\$259.08=\$76.80.$