Gaming educational platform to study school subjects
IQ Class helps schoolchildren and students from all over the world share knowledge and help each other learn. Ask your question to the community of experts or help others by sharing your knowledge.
Sign upNew questions
New questions in the section

Mathematics +7 20211110 08:20:05 Consider a random sample of size n from a twoparameter exponential dist EXP(e, n). Recall from Exercise 12 that X 1 ., and X are jointly sufficient for O Because Xi:n is complete and sufficient for η for each fixed value of θ, argue from 104.7 that X, an... Answer

Mathematics +8 20211110 08:14:04 Could you teach me do this by Ti83or 84？ Below is data collected over 6 specific years. The data collected is the Consumer Price Index (CPT) and the cost of a slice of pizza We would like to build a model using the CPI to predict the cost of a slice of pi... Answer

Engineering +18 20211110 08:07:05 Problem 1. The working distance of myosin II proteins is 5 nm, as measured by several in vitro assays. Does this working distance depend on the contraction speeds of muscles in vivo? If it does, how do the contraction speeds of muscles affect the working ... Answer

Mathematics +13 20211110 07:50:06 Suppose X1, .. ,XM are independent, identically distributed random variables with mean a and variance b2. Let aM ≡ (1/M)Σi=1M aM and bM2≡ (1/(M1)) Σi=1M (XiaM)2. a) Show that aM is an unbiased estimator of E[X]: that is, E[aM] = a. b) Assume that the id... Answer

Engineering +13 20211110 07:49:05 An amplifier circuit using a bipolar transistor is shown in Figure Q5. (a) State, with a valid reason, whether this amplifier is an emitter follower or a common emitter configuration. (b) Redraw Figure Q5 as a large signal equivalent circuit. Show that: ... Answer

Mathematics +16 20211110 07:47:11 6. (a) A manufacturer obtains thermostats from a supplier in batches of 500. Five batches are examined, and found to contain 20,21,25,35 and 29 defective thermostats. Assume that X the number of defectives in a batch can be described by a Binomial distrib... Answer
IQ Class for teachers
We give teachers all the tools they need to make learning as effective as possible for each student

Integrated Curriculum
More than 8,000 student assignments in 5 school subjects

Individual recommendations
Keep track of each student’s weaknesses and gaps in their knowledge to really help them learn.

Determining the student’s level of knowledge
The teacher checks the new students’ knowledge of their subject

Performance analytics online
The teacher has a data sheet for each student, which allows you to assess the level of each class in the individual subjects.