what is the mode of the following set of data? 22 35 65 88 45 35 65 68 97\n65\n35\nthe data has no mode\n35…

what is the mode of the following set of data? 22 35 65 88 45 35 65 68 97\n65\n35\nthe data has no mode\n35 and 65\nquestion #4\nfind the mean of the data set: 12, 15, 18, 25, 31, 47, 59, 63, 75, 75\n41\n47\n42\n43
Answer
Explanation:
Step1: Recall mode definition
The mode is the number that appears most frequently in a data - set.
Step2: Count frequencies
In the data - set 22, 35, 65, 88, 45, 35, 65, 68, 97, the number 35 appears 2 times and the number 65 appears 2 times, and all other numbers appear 1 time.
Answer:
D. 35 and 65
Explanation:
Step1: Recall mean formula
The mean $\bar{x}=\frac{\sum_{i = 1}^{n}x_{i}}{n}$, where $x_{i}$ are the data points and $n$ is the number of data points.
Step2: Calculate sum of data points
$\sum_{i=1}^{10}x_{i}=12 + 15+18 + 25+31+47+59+63+75+75=420$.
Step3: Calculate number of data points
$n = 10$.
Step4: Calculate the mean
$\bar{x}=\frac{420}{10}=42$.
Answer:
C. 42