[Using math nerd skills and athletic knowledge? Rin-san, he's so impressed...!]
Not necessarily, but if you know what kind of cat she is, and get an average for litter size and weight for her breed, you may be able to make your guess more statistically accurate!
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Not necessarily, but if you know what kind of cat she is, and get an average for litter size and weight for her breed, you may be able to make your guess more statistically accurate!