What does the first quartile (Q1) represent?a.The value below which 50% of the data fallsb.The value below which 25% of the data fallsc.The value above which 50% of the data fallsd.The value above which 25% of the data falls

Look at the box plot shown below. What is the 1st Quartile (Q1) of the data set?

Next, find Q1.Recall that the first quartile, Q1, is the median of the lower half of the data. That is, the median of the data located below the Q2 position.Consider the ordered list of data values. The median, Q2, which was determined in the last step, has been underlined for clarity.3,   6,   6,   7,   8,   8,   9,   10,   11There are nine values in the whole data set, but there are only values to the left of the underlined median. The first quartile, Q1, will be equal to the median of these values.Since the lower half of the data has an even number of data values, we will now use the rule to find the median of an even number of data values.median = sum of middle two values2The middle two values of the lower half of the data set are 6 and .Now, calculate the first quartile. Q1.Q1  =  6 + 2  =  2  =

First Quartile is also called the *1 pointalso called the lower quartile.the value appearing at the center of a set of data that has been sorted in numerical order.a value that is much higher or much lower than the other values in a set of data.upper quartile.

What is the first quartile of the data set represented by the box plot shown below?A.13B.20C.25D.40SUBMITarrow_backPREVIOUS

What is the value of the first quartile for observations 15, 18, 10, 20, 23, 28, 12, 16?(a) 17 (b) 16 (c) 12.75 (d) 12