Answer:
The correct option is 1. Calico Crayfish dot plot has two modes.
Step-by-step explanation:
The most frequently occurring number in a set of numbers is celled mode. In other word the mode is number which has highest frequency.
In a dot plot the number of dot above a number represents its frequency.
In graph 1, the maximum number of dots is 4 at 5 and 8. Therefore this dot plot has more than one mode.
In graph 2, the maximum number of dots is 4 at 10. Therefore this dot plot has only one mode.
In graph 3, the maximum number of dots is 4 at 4. Therefore this dot plot has only one mode.
In graph 4, the maximum number of dots is 5 at 5. Therefore this dot plot has only one mode.
Therefore the correct option is 1. Calico Crayfish dot plot has two modes.
