Which of the following is the best estimate in meters for the average width of a doorway?
A. 0.5
B. 1.0
C. 10.0
D. 3.0
Standard interior doors typically range from 0.7 to 0.9 meters in width and 2.0 to 2.1 meters in height. Thus, the average width of the doorway is about 1.0 m.
Therefore, the Correct Answer is B.
More Questions on TEAS 7 Math
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Q #1: A teacher asked all the students in the class which days of the week they get up after 8 a.m. Which of the following is the best way to display the frequency for each day of the week?
A. Histogram
B. Pie graph
C. Bar graph
D. Scatter plot
Answer Explanation
The best way to display the frequency of each day of the week when students get up after 8 a.m. is by using a bar graph. Bar graphs are well-suited for representing categorical data, where each day of the week is a separate category, and the height of each bar corresponds to the count or frequency of students waking up late on that specific day.
Note: Histograms, on the other hand, are more appropriate for visualizing continuous or numerical data and are not ideal for categorical data like days of the week. Histograms are useful for understanding the distribution of data, identifying patterns, and assessing the shape of the data distribution, such as whether it's normally distributed, skewed, or has multiple modes.
As you can see below, the Histogram is used to depict a pattern/continuous/range data. While a bar graph does just fine even with discrete data.
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Q #2: Which of the following is the area of the largest circles that can fit entirely inside a rectangle that measures 8 centimeters by 10 centimeters?
A. 18π cm2
B. 10 π cm2
C. 16 π cm2
D. 8 π cm2
Answer Explanation
To find the area of the largest circle that fits in the rectangle, we need to determine the area of a circle with a diameter of 8 cm or less to fit on the rectangle with the given measurements as illustrated below.
Area of circle= πr2
Radius of circle, r=8cm/2=4cm
Then, area of the largest circle is:
Area of circle= π*4 cm *4 cm =16π cm2
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Q #3: Which of the following statements demonstrates a negative correlation between two variables?
A. People who play baseball more tend to have more hits
B. Shorter people tend to weigh less than taller people
C. Tennis balls that are older tend to have less bounce
D. Cars that are older tend to have higher mileage
Answer Explanation
A negative correlation means as one variable increases, the other variable decreases or as one variable decreases, the other variable increases. Based on this definition, we analyze the given statement as follows:
People who play baseball more tend to have more hits is POSITIVE CORRELATION
Shorter people tend to weigh less than taller people is a POSITIVE CORRELATION
Tennis balls that are older tend to have less bounce is a NEGATIVE CORRELATION
Cars that are older tend to have higher mileage is a POSITIVE CORRELATION
