Your math teacher allows you to choose the most favorable measure of central tendency of your test scores to determine your grade for the term. on six tests you earn scores of 89, 81, 85, 82, 89, and 89. what is your grade to the nearest whole number, and which measure of central tendency should you choose? 87; the median 89; the mean 91; the mode 89; the mode

89; the mode is the best choice

89; the mode

Step-by-step explanation:

In this case, we can organize the grades in order from lowest to greatest:

81, 82, 85, 89, 89, 89

Now we have to what are each measure of central tendency:

The median is the number that is in the middle, in this case, we have two numbers in the middle because the number of elements is even:

85 and 89 are in the middle so we have to get the middle between the two:

(85+89) / 2 = 87; the median

Now we want to get the mean, to do so we have to add all the grades and divide them by the number of grades:

(81+82+85+89+89+89) / 6 = 85.8

The last measure is the mode which is the number that occurs more frequently in a set of numbers:

in this case, 89

Your most favorable measure will be the mode because it gives you the highest grade an 89

the ratio of white tiles to blue tiles is 48: 16. the ratio in it's simplest form is 3: 1.

step-by-step explanation:

ratio: take the first number and add a colon next to it, then add the second number after that. make sure the ratio order matches up with the written problem!

simplest form: we can simplify the ratio 48 : 16 by dividing both terms by the greatest common factor (gcf).

the gcf of 48 and 16 is 16.

divide both terms by 16:

48 ÷ 16 = 3

16 ÷ 16 = 1

reducing to simplest form:

48 : 16 = 3 : 1

step-by-step explanation:

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