Which set of data would you expect not to be symmetrical when displayed in a histogram?

1. the final exam scores of the 9th graders in a high school.

2. the weights of children attending a birthday party.

3. the ages of people participating in a middle school cross country meet.

4. the outside temperature during the month of july

Julia chooses a card at random from her set of cards. what is the probability that the card is labeled cat or hamster?

What is the number 321,000,000 in scientific notation? also what is the number? ?

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label