Mishnah Machshirin 2:9: [If] one found meat there [in the city] we follow the majority of the butchers. If it was cooked we follow the majority of those who eat cooked meat.

מָצָא בָהּ בָּשָׂר, הוֹלְכִין אַחַר רֹב הַטַּבָּחִים. אִם הָיָה מְבֻשָּׁל, הוֹלְכִים אַחַר רֹב אוֹכְלֵי בָשָׂר מְבֻשָּׁל:

Mishnah Machshirin 2:10: [If] one found fruit on the road: If most [farmers normally] bring it into their houses it is exempt [from Ma'aser and Terumah]; and [if most farmers bring it] to sell it in the market it is liable [for Ma'aser and Terumah]. [If] it is half and half it is Demai [produce from which it is uncertain whether tithes were already taken]. [If there is a storehouse] into which Jews and gentiles deposit [their produce]: If the majority [of the individuals] are gentiles [the produce] is certain [Tevel - produce from which tithes and priestly gifts have not yet been taken]; and if the majority are Jews it is Demai. [If] it is half and half it is certain [Tevel], these are the words of Rabbi Meir. But the Sages say: Even if all of them are gentiles and one Jew deposited [produce] in it - it is Demai.

הַמּוֹצֵא פֵרוֹת בַּדֶּרֶךְ, אִם רֹב מַכְנִיסִין לְבָתֵּיהֶן, פָּטוּר. וְלִמְכֹּר בַּשּׁוּק, חַיָּב. מֶחֱצָה לְמֶחֱצָה, דְּמַאי. אוֹצָר שֶׁיִּשְׂרָאֵל וְנָכְרִים מַטִּילִין לְתוֹכוֹ, אִם רֹב נָכְרִים, וַדַּאי. וְאִם רֹב יִשְׂרָאֵל, דְּמַאי. מֶחֱצָה לְמֶחֱצָה, וַדַּאי, דִּבְרֵי רַבִּי מֵאִיר. וַחֲכָמִים אוֹמְרִים, אֲפִלּוּ כֻלָּם נָכְרִים וְיִשְׂרָאֵל אֶחָד מַטִּיל לְתוֹכוֹ, דְּמַאי: