Related Questions

Which of the following is true about the portfolio assessment? A. It is one of the advanced varieties of norm-referenced tests B. Contains a student's self selected samples of work done in a curricular area C. Contains subject-teacher's selection of work samples by a student in a curricular area D. Contains a student's self selected samples to indicate progress achieved in a curricular area E. It is used by schools for certification of students Choose the correct option.
In discrete signal, if y = x and k>1 then ______ b) Some samples are added to x c) It has no effect on samples d) Samples will be increased with factor k
Which of the following holds true according to the properties of hydrogen? I. Hydrogen is the lightest gas. II. Hydrogen cannot be corrosive. III. Deuterium is another name for heavy hydrogen.
Consider the following statements regarding hydrogen fuel cell. 1. Fuel cell electric vehicles (FCEV) uses hydrogen, and an oxidant to create electricity by an electrochemical process. 2. Like a battery-electricity vehicle, fuel cell electric vehicles (FCEV) can also store energy. 3. Hydrogen fuel cells produce much smaller quantities of greenhouse gases. Which of the statements given above is/are correct?
Two dielectric materials A and B exhibit both ionic and orientational polarizabilities. The variation of their susceptibilities $$\chi \left( { = {\varepsilon _r} - 1} \right)$$   with temperature T is shown in the figure, where $${\varepsilon _r}$$ is the relative dielectric constant. It can be inferred from the figure that
Solid State Physics mcq question image
A construction firm has decided to use burnt clay bricks of class 20 and above (as per IS 1077 : 1992) for the construction of a residential complex. The table below gives the details of Samples with Id (S1, S2, S3, S4, and S5) taken from five different suppliers. The criteria to be adopted are the percentage of water absorption and average compressive strength of bricks corresponding to bricks of class 20 and above. Select the Id of the samples which can be recommended for use in brick wall construction. Id Water absorption (%) Average compressive strength (kN/m2) S1 18 17500 S2 20 21000 S3 12 20000 S4 10 14000 S5 15 27000
Researchers have developed an automated blood drawing and testing device that provides rapid results and allows health care practitioners to spend more time treating patients. Which of the following can be the reason behind the invention of the device as inferred from the statement? I. Diagnostic blood testing is the most commonly performed clinical procedure in the world, and it influences most of the medical decisions made in hospitals and laboratories. II. The success rate of manually drawing blood samples depends on clinicians’ skill and patient physiology. III. Nearly all test results come from centralized labs that handle large numbers of samples and use labour-intensive analytical techniques. IV. The device could provide rapid test results at bedsides or in ambulances, emergency rooms, clinics and doctors’ offices.
Which of the following parameters can be tuned for finding good ensemble model in bagging based algorithms?
1. Max number of samples
2. Max features
3. Bootstrapping of samples
4. Bootstrapping of features
Statement I A sampling distribution of mean, prepared on the basis of small sized samples from a population which is not normally distributed, is not normally distributed.
Statement II To test the significance of the difference between means of two small sized samples when the parameter values of the standard deviations are given, Z-test can be applied.
With reference to the Green Hydrogen, consider the following statements: 1. Green hydrogen is produced with the help of electrolysis through electricity generated from renewable sources of energy such as solar and wind. 2. An electric current then splits the water into hydrogen and oxygen. 3. This ensures no greenhouse gas emissions as the only by-product of this process is oxygen, making it a great replacement for carbon-emitting fuels. Which of the above statement is/are correct?