the mean of the number of jumps is 243 .
Step-by-step explanation:
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 [tex]Mean = \frac{x_1+x_2+.......+x_n}{n}[/tex] where [tex]x_1,x_2,........,x_n[/tex] 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 )
⇒ [tex]Mean= \frac{5828}{24}[/tex]
⇒ [tex]Mean= 243[/tex]
Therefore , the mean of the number of jumps is 243 .