Answer:
The point estimate of the proportion of women who trust recommendations made on Pinterest is of 0.78.
Step-by-step explanation:
To find the point estimate of the proportion of women who trust recommendations made on Pinterest, we find the sample proportion.
In this question:
150 women
117 trust recommendations made on Pinterest.
Point estimate:
The point estimate of the proportion of women who trust recommendations made on Pinterest is of 0.78.
Answer:
×
×
=
Step-by-step explanation:
When working with scientific notation, you are either given a decimal or whole number. The point of scientific notation is to rewrite a number in a more simplified form.You need to change the number so that there is one number on the left side of the decimal. An exponent is used to describe the change in the number. For example:
0.00003
In order to get one number to the left of the decimal, you need to move the decimal to the right 5 spaces. Since the zeros are to the left of the primary number (3), the exponent will be negative. The exponent itself will be the spaces you moved:
×
The ten is used because of the decimal places you are moving. When you multiply a number by 10, you add a zero. For example:
×
Since there is a 10, we will be adding in zeros. The exponent determines how many zeros will be added. Since it is a positive number, the numbers will be to the right of the primary number:
200,000