the mean of the number of jumps is 243 .
<u>Step-by-step explanation:</u>
Here we have , At the district competition for 5th grade jump-roper of the year, the following number of jumps without stopping were recorded per student:203,245,237,233,90,100,100,277,265,264,265,285,288,291,
291,290,300,224,200,257,290,279,266,288 . We need to find mean of the number of jumps . Let's find out:
We know that where are the data and n is the number of data we have ! Now , according to question :
⇒ Mean = ( 203+245+237+233+90+100+100+277+265+264+265+285+288+291+
291+290+300+224+200+257+290+279+266+288 ) / ( 24 )
⇒
⇒
Therefore , the mean of the number of jumps is 243 .