Question

ux + 7 = 4y x - 7 = 4y y = 4x - 7 y = 4x + 7​

Answer 1

Answer:

of 5,10,15,20,25,30

\begin{gathered}mean = \frac{sum \: of \: given \: observations}{no \: of \: given \: observation} \\ = \frac{5 + 10 + 15 + 20 + 25 + 30 + 35}{7} \\ = \frac{140}{7} \\ = 20\end{gathered}

mean=

noofgivenobservation

sumofgivenobservations

=

7

5+10+15+20+25+30+35

=

7

140

=20

\begin{gathered}median = value \: of \: \frac{1}{2} .(n + 1)th \: observation \\ = \frac{1}{2} (7 + 1) \\ \frac{1}{2} \times 8 = 4th \: observation \\ median = 20\end{gathered}

median=valueof

2

1

.(n+1)thobservation

=

2

1

(7+1)

2

1

×8=4thobservation

median=20