Answer:
60,000
Step-by-step explanation:
Let the total people in the household be 100%
If 80 percent of the households have cable television, 60 percent of the households have videocassette recorders and the number of households that have both cable television and videocassette recorders is 'x' percent. The number of households having ONLY cable television will be 80-x while households having ONLY videocassette will be 60-x.
To get x, we will have;
80-x + 60-x + x = 100
140-x = 100
x = 140-100
x = 40
This shows that 40% of the households have both cable television and videocassette.
If there are 150,000 households in the city, then the number of households that have both cable television and videocassette recorders could be 40% of 150,000
= 40/100 × 150,000
= 60,000
Number of households that owns both television and videocassette could be from 60,000.
Yes, this is a linear equation with a constant rate of change (a slope) so the sets of values of the graph are proportional
Hello Tbeck227, how to find the angle measure of an isosceles triangle if you only know the side lengths is, <span> for all the angles, though it would be
unreasonable to use it for all three, since once we know two the third
is easy. Lubin suggested using the Cosine Law for the first calculation
and the Sine Law for the second. This is faster than Cosine Law done
twice. The suggestion is to use the Cosine Law to determine the angle
opposite a largest side.</span>
Using the Central Limit Theorem, it is found that each random sample must have at least 10 parents supporting the change and 10 opposing.
<h3>What does the Central Limit Theorem state?</h3>
It states that for a <u>proportion p in a sample of size n</u>, the sampling distribution of sample proportion is approximately normal with mean 
and standard deviation 
, as long as 
and 
.
For the test hpyothesis, two conditions are needed:
- The sampling distribution must be approximately normal.
Hence each random sample must have at least 10 parents supporting the change and 10 opposing.
More can be learned about the Central Limit Theorem at brainly.com/question/24663213
