4/ The table shows the heights of players in a basketball team. Height (cm) Frequency a) Work out the mean height of the team. Round your answer to 1 decimal place. 198 199 200 2 b) A new player joins the team and raises the mean average height to 201 cm. 201 202 2 Work out the height of this new player.

Step-by-step explanation:

Hello!

The table shows the heights in a basketball team.

Height:       198, 199, 200, 201, 202

Frequency:   1,      3,     2,     5,     2

a.) Work out the mean height of the team. Round your answer to 1d.p.

Since the heights of the basketball players is arranged in a frequency table, to calculate the mean you have to use the following formula:

X[bar]= (∑Xfi)/n= (198*1+199*3+200*2+201*5+202*2)/13= 2604/13= 200.307= 200.3 cm

b.) A new player joins the team and raises the mean average height to 201 cm. Work out the height of the new player.

X[bar]ₙ₊₁= 201 cm

This mean was obtained using the same formula as in item a) but with an n'= 14 instead of 13, assuming non of the other players has left the team, so for them ∑Xfi= 2604 cm and "b" will represent the height of the new player:

X[bar]ₙ₊₁=  ((∑Xfi)+b)/(n+1)= (2604+b)/14= 201 cm

2604+b= 201*14

2604+b=2814

b= 2814-2604= 210 cm

The new player's height is 210 cm

I hope this helps!

step-by-step explanation:

ok so im not 100% sure but you would start by adding 5.1t and 1.9t beacuse they have the same variable. that is 7t.   then add -3.6 + 1.2 which is -2.4

so then keep that as -2.4 + 7t. i apologize if this is incorrect. best luck on your test < 3

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.