There are a total of 297 students in the 7th grade. Rough estimates would say that about half of that number are boys and half are girls. Asking only 50 random girls would be biased because not only would it not be all of the girls (the number of girls would be around 148 or 149) but it would also be ignoring the roughly 148 to 149 boys there are on estimate. The sample would be biased because it would be ignoring the opinions of more than half the seventh grade.
Answer:
3
16+ x = 19
x= 3
Step-by-step explanation:
pls mark as brainliest ty
The class midpoint is the lower class limit plus the upper class limit divided by 2 . Add the midpoints column to the original table.
Answer:
Step-by-step explanation:
To solve this problem you must apply the proccedure shown below:
1. We know that 1 yard is 36 inches, therefore, 50 yards expressed in inches is:
<u>
(50)(36)=1800in</u>
2. If he is 50 yards from school and the map shows that the school is 34 inches from his current location, when it shows 3 inches the real distance is:
<u>
(1800)(3in)/24in=158.82</u>
3. If you can to express it in yards:
<u>
158.82/36=4.41yd</u>
<h2><u>
Therefore, the answer is: 158.82 inches or 4.41 yards.</u></h2>
