Strad 11. एउटा सर्वेक्षणमा एक चौथाइ युवतीहरूले अमिलो मात्र मन
प्रराउँछन् र एक तिहाइले पिरो मन पराउछन् । यदि 50 जनाले
दुवै मन पराउदैनन् भने जम्मा युवतीहरूको सङ्ख्या भेनचित्रको
महायतावाट पत्ता लगाउनुहोस् । (In a survey one fourth
young girl like sour taste only and one third like chilly
test. If 50 of them do not like both the tastes. lind the
total number of young girl with the help of a Venn-
diagram.)
ANS:120​

7. if the value of x varies directly with the value of y, and x = 3 when y = 21. what is the valu y, and x = 3 when y = 21. what is the value of x when y = 105?

Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.

Acircle has a circumference of 7.850 units. what is its radius?