Math, asked by Anonymous, 1 year ago

the mean of the following frequency distribution is 50.find p
x=10,30,50,70,90.
f=17,5p+3,32,7p-11,19

Answers

Answered by parthgoel
6
sum of observation = 640p +2800
no. of observation = 12p +60

mean=sum of observation / no. of observation
     50  = 640p + 2800 / 12p +60
    600p + 3000 = 640p + 2800
  3000 - 2800 = 640p - 600p
  200 = 20p
10 = p
Attachments:
c98a62baf82cb30359232e12d7a90a96.xlsx
parthgoel: pls mark it as best answer
Anonymous: nice answer i am marking it the best
Anonymous: Thank you for answering
Previous Question
Next Question
Similar questions
Science, 7 months ago
to metamorphose ,means to ............. from ​...
Social Sciences, 7 months ago
In what way are the Himalayas mountain useful to us​...
English, 7 months ago
SNEHA wanted to wrtie a story but could not be beyond a line or two . taking help from, the information given along with the lines sneha wrote a complete story . Mr Aggarwal was very wealthy businessman .one day he was alone sitting at his dining table when ..... outline .thief entered .........Mr Aggarwal.....to give company.....birth day........gave him good food and drink......gave a...
Math, 1 year ago
Factorise: 1) x³ (2a-b) + x² (2a-b) 2) 9a (3a-5b) - 12a² (3a-5b) 3) (x+5)² - 4 (x+5) please explain these sums clearly.
English, 1 year ago
write a report in 250 words of an interview you had with your local mla...
History, 1 year ago
why do we fast during navratri?
English, 1 year ago
i want essay on 'problem of common man'...
English, 1 year ago
your parents are out of station and gave the work to look after your pet but you are busy in your work  unburden your feelings write diary entry in 150 words...