jonathanace1932 jonathanace1932

06-03-2024
Mathematics

contestada

If 150 is the mean of 200 observations and 100 is the mean of some 300 other observations, find the mean of the combination:
a) 125
b) 130
c) 135
d) 140

Respuesta :

Otras preguntas

Which product of modern technology has helped professional swimmers improve their racing performance?

Why did Sparta initiate the series of conflicts known as Peloponnesian war ?

Gene cloning can involve inserting genes into a. machines. b. humans. c. plants. d. protein.

In which sphere would lightning be found? A. biosphere B. hydrosphere C. magnetosphere D. atmosphere Really need help PRONTO!!! Please!!!

A complex sentence contains _____. one subject and one verb two or more main clauses more than three modifiers a main clause and one or more subordinate clause

To ensure production of vital war materials and resolve labor disputes, the government created the

How does ATP supply energy for cellular activities? by breaking off a phosphate group from its structure by releasing the sugar molecule from its structure by a

Sandra's mom poured juice into an ice cube tray to make little ice pops for Sandra and her sister. She put them in the freezer for several hours and took them o

What is the tense of the underlined verb in the sentence? Uncle Mel drove a school bus during the winter last year. a. future b. past perfect c. past d. presen

The telephone rates between your city and the city where your brother lives are $.54 for the first minute and $.22 for each additional minute. Calculate the cos