Step-by-step explanation: Of you have a painting that is $1700 and is on sale for a week for example, you would take your percent and move the decimal to the left TWO times and put /100 over it, and then multiply it by 1700/10, and there's your answer. Cross simplify if you can.
Katie is at a casino and bets on only the face cards (J, Q, and K). The casino dealer deals Katie a card from a 26-card deck that contains only clubs and spades. What is the probability that Katie will win this round?
Recently, a random sample of 25–34 year olds was asked, "How much do you currently have in savings, not including retirement savings?" The following data represent the responses to the survey. Approximate the mean and standard deviation amount of savings.
A random sample is the arbitrary selection of data in a non-preselected form.What is Sampling Error?
This refers to the statistical error which is made when a researcher fails to select a sample which represents a population.
With this in mind, we can see that if a person is studying standard deviation or mean of a set of data and has a sampling error, then it would not give an accurate reading of the set of data.
Please note that your question is incomplete so I gave you a general overview to help you better understand the concept.
Read more about sampling error here:
You forgot to put the data
Because we don't have the data that represent the responses to the survery I can show you how to can get the mean and the standard deviation.
The mean is the average of the numbers. We use it to get a representative value of the data we are manipulating. We calculate it by adding all the numbers and then divide the sum by how many numbers we have.
The formule we use is:
The standard deviation is a measure of the variation or dispersion of the data we have. A low deviation indicates that our data is few disperced, on the other hand a big deviation indicates a high dispersion of the data.
The formule we use is:
A games shop sells marbles in clear plastic cylinders.
Four marbles fit across the
diameter of the cylinder, and
10 marbles fit from the base
to the top of the cylinder.
Each marble has a diameter
of 2 cm. What is the area of
the plastic that is needed to
make one cylinder?
A caterer charges $500 plus $30 per guest to cater a wedding. Walt and Traci don't want to spend more than $8000 on catering. Write and solve an inequality in terms of the number of guests, g, that can be invited.
i had it on usa test prep
The cage is 4 feet tall, 22 inches, wide, and 2 yards long. What is the volume of the cage in cubic inches?
There is a probability of 0.93 that a visitor to a website will bounce (leave the website without clicking on any links). what is the probability that at least 10 of the next 12 visitors to the website will bounce?
Eight less than four times a number is less than 56. What are the possible values of that number?
Any number that is less than 16.
72% percent as a fraction
What comes after 3.4 in a pattern when dividing